class StandardTest
Same name in this branch
- 11.x core/profiles/standard/tests/src/Functional/StandardTest.php \Drupal\Tests\standard\Functional\StandardTest
Same name in other branches
- 9 core/profiles/standard/tests/src/Functional/StandardTest.php \Drupal\Tests\standard\Functional\StandardTest
- 9 core/modules/editor/tests/src/Unit/EditorXssFilter/StandardTest.php \Drupal\Tests\editor\Unit\EditorXssFilter\StandardTest
- 8.9.x core/profiles/standard/tests/src/Functional/StandardTest.php \Drupal\Tests\standard\Functional\StandardTest
- 8.9.x core/modules/editor/tests/src/Unit/EditorXssFilter/StandardTest.php \Drupal\Tests\editor\Unit\EditorXssFilter\StandardTest
- 10 core/profiles/standard/tests/src/Functional/StandardTest.php \Drupal\Tests\standard\Functional\StandardTest
- 10 core/modules/editor/tests/src/Unit/EditorXssFilter/StandardTest.php \Drupal\Tests\editor\Unit\EditorXssFilter\StandardTest
@coversDefaultClass \Drupal\editor\EditorXssFilter\Standard @group editor
Hierarchy
- class \Drupal\Tests\UnitTestCase extends \PHPUnit\Framework\TestCase uses \Drupal\Tests\PhpUnitCompatibilityTrait, \Prophecy\PhpUnit\ProphecyTrait, \Drupal\TestTools\Extension\DeprecationBridge\ExpectDeprecationTrait, \Drupal\Tests\RandomGeneratorTrait
- class \Drupal\Tests\editor\Unit\EditorXssFilter\StandardTest extends \Drupal\Tests\UnitTestCase
Expanded class hierarchy of StandardTest
File
-
core/
modules/ editor/ tests/ src/ Unit/ EditorXssFilter/ StandardTest.php, line 19
Namespace
Drupal\Tests\editor\Unit\EditorXssFilterView source
class StandardTest extends UnitTestCase {
/**
* The mocked text format configuration entity.
*
* @var \Drupal\filter\Entity\FilterFormat|\PHPUnit\Framework\MockObject\MockObject
*/
protected $format;
/**
* {@inheritdoc}
*/
protected function setUp() : void {
parent::setUp();
// Mock text format configuration entity object.
$this->format = $this->getMockBuilder('\\Drupal\\filter\\Entity\\FilterFormat')
->disableOriginalConstructor()
->getMock();
$this->format
->expects($this->any())
->method('getFilterTypes')
->willReturn([
FilterInterface::TYPE_HTML_RESTRICTOR,
]);
$restrictions = [
'allowed' => [
'p' => TRUE,
'a' => TRUE,
'*' => [
'style' => FALSE,
'on*' => FALSE,
],
],
];
$this->format
->expects($this->any())
->method('getHtmlRestrictions')
->willReturn($restrictions);
}
/**
* Provides test data for testFilterXss().
*
* @see \Drupal\Tests\editor\Unit\editor\EditorXssFilter\StandardTest::testFilterXss()
*/
public static function providerTestFilterXss() {
$data = [];
$data[] = [
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown>',
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown>',
];
$data[] = [
'<p style="color:red">Hello, world!</p><unknown>Pink Fairy Armadillo</unknown>',
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown>',
];
$data[] = [
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown><script>alert("evil");</script>',
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown>alert("evil");',
];
$data[] = [
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown><a href="javascript:alert(1)">test</a>',
'<p>Hello, world!</p><unknown>Pink Fairy Armadillo</unknown><a href="alert(1)">test</a>',
];
// All cases listed on https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
// No Filter Evasion.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#No_Filter_Evasion
$data[] = [
'<SCRIPT SRC=http://ha.ckers.org/xss.js></SCRIPT>',
'',
];
// Image XSS using the JavaScript directive.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Image_XSS_using_the_JavaScript_directive
$data[] = [
'<IMG SRC="javascript:alert(\'XSS\');">',
'<IMG src="alert('XSS');">',
];
// No quotes and no semicolon.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#No_quotes_and_no_semicolon
$data[] = [
'<IMG SRC=javascript:alert(\'XSS\')>',
'<IMG>',
];
// Case insensitive XSS attack vector.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Case_insensitive_XSS_attack_vector
$data[] = [
'<IMG SRC=JaVaScRiPt:alert(\'XSS\')>',
'<IMG>',
];
// HTML entities.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#HTML_entities
$data[] = [
'<IMG SRC=javascript:alert("XSS")>',
'<IMG>',
];
// Grave accent obfuscation.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Grave_accent_obfuscation
$data[] = [
'<IMG SRC=`javascript:alert("RSnake says, \'XSS\'")`>',
'<IMG>',
];
// Malformed A tags.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Malformed_A_tags
$data[] = [
'<a onmouseover="alert(document.cookie)">xxs link</a>',
'<a>xxs link</a>',
];
$data[] = [
'<a onmouseover=alert(document.cookie)>xxs link</a>',
'<a>xxs link</a>',
];
// Malformed IMG tags.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Malformed_IMG_tags
$data[] = [
'<IMG """><SCRIPT>alert("XSS")</SCRIPT>">',
'<IMG>alert("XSS")">',
];
// fromCharCode.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#fromCharCode
$data[] = [
'<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>',
'<IMG src="alert(String.fromCharCode(88,83,83))">',
];
// Default SRC tag to get past filters that check SRC domain.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Default_SRC_tag_to_get_past_filters_that_check_SRC_domain
$data[] = [
'<IMG SRC=# onmouseover="alert(\'xxs\')">',
'<IMG src="#">',
];
// Default SRC tag by leaving it empty.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Default_SRC_tag_by_leaving_it_empty
$data[] = [
'<IMG SRC= onmouseover="alert(\'xxs\')">',
'<IMG>',
];
// Default SRC tag by leaving it out entirely.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Default_SRC_tag_by_leaving_it_out_entirely
$data[] = [
'<IMG onmouseover="alert(\'xxs\')">',
'<IMG>',
];
// Decimal HTML character references.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Decimal_HTML_character_references
$data[] = [
'<IMG SRC=javascript:alert('XSS')>',
'<IMG src="alert('XSS')">',
];
// Decimal HTML character references without trailing semicolons.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Decimal_HTML_character_references_without_trailing_semicolons
$data[] = [
'<IMG SRC=javascript:alert('XSS')>',
'<IMG src="&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058&#0000097&#0000108&#0000101&#0000114&#0000116&#0000040&#0000039&#0000088&#0000083&#0000083&#0000039&#0000041">',
];
// Hexadecimal HTML character references without trailing semicolons.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Hexadecimal_HTML_character_references_without_trailing_semicolons
$data[] = [
'<IMG SRC=javascript:alert('XSS')>',
'<IMG src="&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29">',
];
// Embedded tab.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Embedded_tab
$data[] = [
'<IMG SRC="jav ascript:alert(\'XSS\');">',
'<IMG src="alert('XSS');">',
];
// Embedded Encoded tab.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Embedded_Encoded_tab
$data[] = [
'<IMG SRC="jav	ascript:alert(\'XSS\');">',
'<IMG src="alert('XSS');">',
];
// Embedded newline to break up XSS.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Embedded_newline_to_break_up_XSS
$data[] = [
'<IMG SRC="jav
ascript:alert(\'XSS\');">',
'<IMG src="alert('XSS');">',
];
// Embedded carriage return to break up XSS.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Embedded_carriage_return_to_break_up_XSS
$data[] = [
'<IMG SRC="jav
ascript:alert(\'XSS\');">',
'<IMG src="alert('XSS');">',
];
// Null breaks up JavaScript directive.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Null_breaks_up_JavaScript_directive
$data[] = [
"<IMG SRC=java\x00script:alert(\"XSS\")>",
'<IMG>',
];
// Non-alpha-non-digit XSS.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Non-alpha-non-digit_XSS
$data[] = [
'<SCRIPT/XSS SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'',
];
$data[] = [
'<BODY onload!#$%&()*~+-_.,:;?@[/|\\]^`=alert("XSS")>',
'<BODY>',
];
$data[] = [
'<SCRIPT/SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'',
];
// Extraneous open brackets.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Extraneous_open_brackets
$data[] = [
'<<SCRIPT>alert("XSS");//<</SCRIPT>',
'<alert("XSS");//<',
];
// No closing script tags.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#No_closing_script_tags
$data[] = [
'<SCRIPT SRC=http://ha.ckers.org/xss.js?< B >',
'',
];
// Protocol resolution in script tags.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Protocol_resolution_in_script_tags
$data[] = [
'<SCRIPT SRC=//ha.ckers.org/.j>',
'',
];
// Half open HTML/JavaScript XSS vector.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Half_open_HTML.2FJavaScript_XSS_vector
$data[] = [
'<IMG SRC="javascript:alert(\'XSS\')"',
'<IMG src="alert('XSS')">',
];
// Double open angle brackets.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Double_open_angle_brackets
// @see http://ha.ckers.org/blog/20060611/hotbot-xss-vulnerability/ to
// understand why this is a vulnerability.
$data[] = [
'<iframe src=http://ha.ckers.org/scriptlet.html <',
'<iframe src="http://ha.ckers.org/scriptlet.html">',
];
// Escaping JavaScript escapes.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Escaping_JavaScript_escapes
// This one is irrelevant for Drupal; we *never* output any JavaScript code
// that depends on the URL's query string.
// End title tag.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#End_title_tag
$data[] = [
'</TITLE><SCRIPT>alert("XSS");</SCRIPT>',
'</TITLE>alert("XSS");',
];
// INPUT image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#INPUT_image
$data[] = [
'<INPUT TYPE="IMAGE" SRC="javascript:alert(\'XSS\');">',
'<INPUT type="IMAGE" src="alert('XSS');">',
];
// BODY image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#BODY_image
$data[] = [
'<BODY BACKGROUND="javascript:alert(\'XSS\')">',
'<BODY background="alert('XSS')">',
];
// IMG Dynsrc.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IMG_Dynsrc
$data[] = [
'<IMG DYNSRC="javascript:alert(\'XSS\')">',
'<IMG dynsrc="alert('XSS')">',
];
// IMG lowsrc.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IMG_lowsrc
$data[] = [
'<IMG LOWSRC="javascript:alert(\'XSS\')">',
'<IMG lowsrc="alert('XSS')">',
];
// List-style-image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#List-style-image
$data[] = [
'<STYLE>li {list-style-image: url("javascript:alert(\'XSS\')");}</STYLE><UL><LI>XSS</br>',
'li {list-style-image: url("javascript:alert(\'XSS\')");}<UL><LI>XSS</br>',
];
// VBscript in an image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#VBscript_in_an_image
$data[] = [
'<IMG SRC=\'vbscript:msgbox("XSS")\'>',
'<IMG src=\'msgbox("XSS")\'>',
];
// Livescript (older versions of Netscape only).
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Livescript_.28older_versions_of_Netscape_only.29
$data[] = [
'<IMG SRC="livescript:[code]">',
'<IMG src="[code]">',
];
// BODY tag.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#BODY_tag
$data[] = [
'<BODY ONLOAD=alert(\'XSS\')>',
'<BODY>',
];
// Event handlers.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Event_Handlers
$events = [
'onAbort',
'onActivate',
'onAfterPrint',
'onAfterUpdate',
'onBeforeActivate',
'onBeforeCopy',
'onBeforeCut',
'onBeforeDeactivate',
'onBeforeEditFocus',
'onBeforePaste',
'onBeforePrint',
'onBeforeUnload',
'onBeforeUpdate',
'onBegin',
'onBlur',
'onBounce',
'onCellChange',
'onChange',
'onClick',
'onContextMenu',
'onControlSelect',
'onCopy',
'onCut',
'onDataAvailable',
'onDataSetChanged',
'onDataSetComplete',
'onDblClick',
'onDeactivate',
'onDrag',
'onDragEnd',
'onDragLeave',
'onDragEnter',
'onDragOver',
'onDragDrop',
'onDragStart',
'onDrop',
'onEnd',
'onError',
'onErrorUpdate',
'onFilterChange',
'onFinish',
'onFocus',
'onFocusIn',
'onFocusOut',
'onHashChange',
'onHelp',
'onInput',
'onKeyDown',
'onKeyPress',
'onKeyUp',
'onLayoutComplete',
'onLoad',
'onLoseCapture',
'onMediaComplete',
'onMediaError',
'onMessage',
'onMousedown',
'onMouseEnter',
'onMouseLeave',
'onMouseMove',
'onMouseOut',
'onMouseOver',
'onMouseUp',
'onMouseWheel',
'onMove',
'onMoveEnd',
'onMoveStart',
'onOffline',
'onOnline',
'onOutOfSync',
'onPaste',
'onPause',
'onPopState',
'onProgress',
'onPropertyChange',
'onReadyStateChange',
'onRedo',
'onRepeat',
'onReset',
'onResize',
'onResizeEnd',
'onResizeStart',
'onResume',
'onReverse',
'onRowsEnter',
'onRowExit',
'onRowDelete',
'onRowInserted',
'onScroll',
'onSeek',
'onSelect',
'onSelectionChange',
'onSelectStart',
'onStart',
'onStop',
'onStorage',
'onSyncRestored',
'onSubmit',
'onTimeError',
'onTrackChange',
'onUndo',
'onUnload',
'onURLFlip',
];
foreach ($events as $event) {
$data[] = [
'<p ' . $event . '="javascript:alert(\'XSS\');">Dangerous llama!</p>',
'<p>Dangerous llama!</p>',
];
}
// BGSOUND.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#BGSOUND
$data[] = [
'<BGSOUND SRC="javascript:alert(\'XSS\');">',
'<BGSOUND src="alert('XSS');">',
];
// & JavaScript includes.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#.26_JavaScript_includes
$data[] = [
'<BR SIZE="&{alert(\'XSS\')}">',
'<BR size="">',
];
// STYLE sheet.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_sheet
$data[] = [
'<LINK REL="stylesheet" HREF="javascript:alert(\'XSS\');">',
'',
];
// Remote style sheet.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Remote_style_sheet
$data[] = [
'<LINK REL="stylesheet" HREF="http://ha.ckers.org/xss.css">',
'',
];
// Remote style sheet part 2.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Remote_style_sheet_part_2
$data[] = [
'<STYLE>@import\'http://ha.ckers.org/xss.css\';</STYLE>',
'@import\'http://ha.ckers.org/xss.css\';',
];
// Remote style sheet part 3.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Remote_style_sheet_part_3
$data[] = [
'<META HTTP-EQUIV="Link" Content="<http://ha.ckers.org/xss.css>; REL=stylesheet">',
'<META http-equiv="Link">; REL=stylesheet">',
];
// Remote style sheet part 4.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Remote_style_sheet_part_4
$data[] = [
'<STYLE>BODY{-moz-binding:url("http://ha.ckers.org/xssmoz.xml#xss")}</STYLE>',
'BODY{-moz-binding:url("http://ha.ckers.org/xssmoz.xml#xss")}',
];
// STYLE tags with broken up JavaScript for XSS.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_tags_with_broken_up_JavaScript_for_XSS
$data[] = [
'<STYLE>@im\\port\'\\ja\\vasc\\ript:alert("XSS")\';</STYLE>',
'@im\\port\'\\ja\\vasc\\ript:alert("XSS")\';',
];
// STYLE attribute using a comment to break up expression.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_attribute_using_a_comment_to_break_up_expression
$data[] = [
'<IMG STYLE="xss:expr/*XSS*/ession(alert(\'XSS\'))">',
'<IMG>',
];
// IMG STYLE with expression.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IMG_STYLE_with_expression
$data[] = [
'exp/*<A STYLE=\'no\\xss:noxss("*//*");
xss:ex/*XSS*//*/*/pression(alert("XSS"))\'>',
'exp/*<A>',
];
// STYLE tag (Older versions of Netscape only).
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_tag_.28Older_versions_of_Netscape_only.29
$data[] = [
'<STYLE TYPE="text/javascript">alert(\'XSS\');</STYLE>',
'alert(\'XSS\');',
];
// STYLE tag using background-image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_tag_using_background-image
$data[] = [
'<STYLE>.XSS{background-image:url("javascript:alert(\'XSS\')");}</STYLE><A CLASS=XSS></A>',
'.XSS{background-image:url("javascript:alert(\'XSS\')");}<A class="XSS"></A>',
];
// STYLE tag using background.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#STYLE_tag_using_background
$data[] = [
'<STYLE type="text/css">BODY{background:url("javascript:alert(\'XSS\')")}</STYLE>',
'BODY{background:url("javascript:alert(\'XSS\')")}',
];
// Anonymous HTML with STYLE attribute.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Anonymous_HTML_with_STYLE_attribute
$data[] = [
'<XSS STYLE="xss:expression(alert(\'XSS\'))">',
'<XSS>',
];
// Local htc file.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Local_htc_file
$data[] = [
'<XSS STYLE="behavior: url(xss.htc);">',
'<XSS>',
];
// US-ASCII encoding.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#US-ASCII_encoding
// This one is irrelevant for Drupal; Drupal *always* outputs UTF-8.
// META.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#META
$data[] = [
'<META HTTP-EQUIV="refresh" CONTENT="0;url=javascript:alert(\'XSS\');">',
'<META http-equiv="refresh" content="alert('XSS');">',
];
// META using data.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#META_using_data
$data[] = [
'<META HTTP-EQUIV="refresh" CONTENT="0;url=data:text/html base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K">',
'<META http-equiv="refresh" content="text/html base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K">',
];
// META with additional URL parameter
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#META
$data[] = [
'<META HTTP-EQUIV="refresh" CONTENT="0; URL=http://;URL=javascript:alert(\'XSS\');">',
'<META http-equiv="refresh" content="//;URL=javascript:alert('XSS');">',
];
// IFRAME.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IFRAME
$data[] = [
'<IFRAME SRC="javascript:alert(\'XSS\');"></IFRAME>',
'<IFRAME src="alert('XSS');"></IFRAME>',
];
// IFRAME Event based.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IFRAME_Event_based
$data[] = [
'<IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>',
'<IFRAME src="#"></IFRAME>',
];
// FRAME.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#FRAME
$data[] = [
'<FRAMESET><FRAME SRC="javascript:alert(\'XSS\');"></FRAMESET>',
'<FRAMESET><FRAME src="alert('XSS');"></FRAMESET>',
];
// TABLE.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#TABLE
$data[] = [
'<TABLE BACKGROUND="javascript:alert(\'XSS\')">',
'<TABLE background="alert('XSS')">',
];
// TD.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#TD
$data[] = [
'<TABLE><TD BACKGROUND="javascript:alert(\'XSS\')">',
'<TABLE><TD background="alert('XSS')">',
];
// DIV background-image.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#DIV_background-image
$data[] = [
'<DIV STYLE="background-image: url(javascript:alert(\'XSS\'))">',
'<DIV>',
];
// DIV background-image with unicoded XSS exploit.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#DIV_background-image_with_unicoded_XSS_exploit
$data[] = [
'<DIV STYLE="background-image:\\0075\\0072\\006C\\0028\'\\006a\\0061\\0076\\0061\\0073\\0063\\0072\\0069\\0070\\0074\\003a\\0061\\006c\\0065\\0072\\0074\\0028.1027\\0058.1053\\0053\\0027\\0029\'\\0029">',
'<DIV>',
];
// DIV background-image plus extra characters.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#DIV_background-image_plus_extra_characters
$data[] = [
'<DIV STYLE="background-image: url(javascript:alert(\'XSS\'))">',
'<DIV>',
];
// DIV expression.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#DIV_expression
$data[] = [
'<DIV STYLE="width: expression(alert(\'XSS\'));">',
'<DIV>',
];
// Downlevel-Hidden block.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Downlevel-Hidden_block
$data[] = [
'<!--[if gte IE 4]>
<SCRIPT>alert(\'XSS\');</SCRIPT>
<![endif]-->',
"\n alert('XSS');\n ",
];
// BASE tag.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#BASE_tag
$data[] = [
'<BASE HREF="javascript:alert(\'XSS\');//">',
'<BASE href="alert('XSS');//">',
];
// OBJECT tag.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#OBJECT_tag
$data[] = [
'<OBJECT TYPE="text/x-scriptlet" DATA="http://ha.ckers.org/scriptlet.html"></OBJECT>',
'',
];
// Using an EMBED tag you can embed a Flash movie that contains XSS.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Using_an_EMBED_tag_you_can_embed_a_Flash_movie_that_contains_XSS
$data[] = [
'<EMBED SRC="http://ha.ckers.org/xss.swf" AllowScriptAccess="always"></EMBED>',
'',
];
// You can EMBED SVG which can contain your XSS vector.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#You_can_EMBED_SVG_which_can_contain_your_XSS_vector
// cspell:disable-next-line
$data[] = [
'<EMBED SRC="data:image/svg+xml;base64,PHN2ZyB4bWxuczpzdmc9Imh0dH A6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hs aW5rIiB2ZXJzaW9uPSIxLjAiIHg9IjAiIHk9IjAiIHdpZHRoPSIxOTQiIGhlaWdodD0iMjAw IiBpZD0ieHNzIj48c2NyaXB0IHR5cGU9InRleHQvZWNtYXNjcmlwdCI+YWxlcnQoIlh TUyIpOzwvc2NyaXB0Pjwvc3ZnPg==" type="image/svg+xml" AllowScriptAccess="always"></EMBED>',
'',
];
// XML data island with CDATA obfuscation.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#XML_data_island_with_CDATA_obfuscation
$data[] = [
'<XML ID="xss"><I><B><IMG SRC="javas<!-- -->cript:alert(\'XSS\')"></B></I></XML><SPAN DATASRC="#xss" DATAFLD="B" DATAFORMATAS="HTML"></SPAN>',
'<XML id="xss"><I><B><IMG>cript:alert(\'XSS\')"></B></I></XML><SPAN datasrc="#xss" datafld="B" dataformatas="HTML"></SPAN>',
];
// Locally hosted XML with embedded JavaScript that is generated using an XML data island.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Locally_hosted_XML_with_embedded_JavaScript_that_is_generated_using_an_XML_data_island
// This one is irrelevant for Drupal; Drupal disallows XML uploads by
// default.
// HTML+TIME in XML.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#HTML.2BTIME_in_XML
$data[] = [
'<?xml:namespace prefix="t" ns="urn:schemas-microsoft-com:time"><?import namespace="t" implementation="#default#time2"><t:set attributeName="innerHTML" to="XSS<SCRIPT DEFER>alert("XSS")</SCRIPT>">',
'<?xml:namespace prefix="t" ns="urn:schemas-microsoft-com:time"><?import namespace="t" implementation="#default#time2"><t set attributename="innerHTML">alert("XSS")">',
];
// Assuming you can only fit in a few characters and it filters against ".js".
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Assuming_you_can_only_fit_in_a_few_characters_and_it_filters_against_.22.js.22
$data[] = [
'<SCRIPT SRC="http://ha.ckers.org/xss.jpg"></SCRIPT>',
'',
];
// IMG Embedded commands.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#IMG_Embedded_commands
// This one is irrelevant for Drupal; this is actually a CSRF, for which
// Drupal has CSRF protection. See https://www.drupal.org/node/178896.
// Cookie manipulation.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#Cookie_manipulation
$data[] = [
'<META HTTP-EQUIV="Set-Cookie" Content="UserID=<SCRIPT>alert(\'XSS\')</SCRIPT>">',
'<META http-equiv="Set-Cookie">alert(\'XSS\')">',
];
// UTF-7 encoding.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#UTF-7_encoding
// This one is irrelevant for Drupal; Drupal *always* outputs UTF-8.
// XSS using HTML quote encapsulation.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#XSS_using_HTML_quote_encapsulation
$data[] = [
'<SCRIPT a=">" SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'" SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT =">" SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'" SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT a=">" \'\' SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'" \'\' SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT "a=\'>\'" SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'\'" SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT a=`>` SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'` SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT a=">\'>" SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'\'>" SRC="http://ha.ckers.org/xss.js">',
];
$data[] = [
'<SCRIPT>document.write("<SCRI");</SCRIPT>PT SRC="http://ha.ckers.org/xss.js"></SCRIPT>',
'document.write("<SCRI>PT SRC="http://ha.ckers.org/xss.js">',
];
// URL string evasion.
// @see https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet#URL_string_evasion
// This one is irrelevant for Drupal; Drupal doesn't forbid linking to some
// sites, it only forbids linking to any protocols other than those that are
// allowed.
// Test XSS filtering on data-attributes.
// @see \Drupal\editor\EditorXssFilter::filterXssDataAttributes()
// The following two test cases verify that XSS attack vectors are filtered.
$data[] = [
'<img src="butterfly.jpg" data-caption="<script>alert();</script>" />',
'<img src="butterfly.jpg" data-caption="alert();">',
];
$data[] = [
'<img src="butterfly.jpg" data-caption="<EMBED SRC="http://ha.ckers.org/xss.swf" AllowScriptAccess="always"></EMBED>" />',
'<img src="butterfly.jpg" data-caption>',
];
// When including HTML-tags as visible content, they are double-escaped.
// This test case ensures that we leave that content unchanged.
$data[] = [
'<img src="butterfly.jpg" data-caption="&lt;script&gt;alert();&lt;/script&gt;" />',
'<img src="butterfly.jpg" data-caption="&lt;script&gt;alert();&lt;/script&gt;">',
];
return $data;
}
/**
* Tests the method for filtering XSS.
*
* @param string $input
* The input.
* @param string $expected_output
* The expected output.
*
* @dataProvider providerTestFilterXss
*/
public function testFilterXss($input, $expected_output) : void {
$output = Standard::filterXss($input, $this->format);
$this->assertSame($expected_output, $output);
}
/**
* Tests removing disallowed tags and XSS prevention.
*
* \Drupal\Component\Utility\Xss::filter() has the ability to run in remove
* mode, in which it still applies the exact same filtering, with one
* exception: it no longer works with a list of allowed tags, but with a list
* of disallowed tags.
*
* @param string $value
* The value to filter.
* @param string $expected
* The string that is expected to be missing.
* @param string $message
* The assertion message to display upon failure.
* @param array $disallowed_tags
* (optional) The disallowed HTML tags to be passed to \Drupal\Component\Utility\Xss::filter().
*
* @dataProvider providerTestDisallowMode
*/
public function testDisallowMode($value, $expected, $message, array $disallowed_tags) : void {
$value = Standard::filter($value, $disallowed_tags);
$this->assertSame($expected, $value, $message);
}
/**
* Data provider for testDisallowMode().
*
* @see testDisallowMode()
*
* @return array
* An array of arrays containing the following elements:
* - The value to filter.
* - The value to expect after filtering.
* - The assertion message.
* - (optional) The disallowed HTML tags to be passed to \Drupal\Component\Utility\Xss::filter().
*/
public static function providerTestDisallowMode() {
return [
[
'<unknown style="visibility:hidden">Pink Fairy Armadillo</unknown><video src="gerenuk.mp4"><script>alert(0)</script>',
'<unknown>Pink Fairy Armadillo</unknown><video src="gerenuk.mp4">alert(0)',
'Disallow only the script tag',
[
'script',
],
],
[
'<unknown style="visibility:hidden">Pink Fairy Armadillo</unknown><video src="gerenuk.mp4"><script>alert(0)</script>',
'<unknown>Pink Fairy Armadillo</unknown>alert(0)',
'Disallow both the script and video tags',
[
'script',
'video',
],
],
// No real use case for this, but it is an edge case we must ensure works.
[
'<unknown style="visibility:hidden">Pink Fairy Armadillo</unknown><video src="gerenuk.mp4"><script>alert(0)</script>',
'<unknown>Pink Fairy Armadillo</unknown><video src="gerenuk.mp4"><script>alert(0)</script>',
'Disallow no tags',
[],
],
];
}
}Members
| Title Sort descending | Modifiers | Object type | Summary | Overriden Title |
|---|---|---|---|---|
| ExpectDeprecationTrait::expectDeprecation | public | function | Adds an expected deprecation. | |
| ExpectDeprecationTrait::getCallableName | private static | function | Returns a callable as a string suitable for inclusion in a message. | |
| ExpectDeprecationTrait::setUpErrorHandler | public | function | Sets up the test error handler. | |
| ExpectDeprecationTrait::tearDownErrorHandler | public | function | Tears down the test error handler. | |
| RandomGeneratorTrait::getRandomGenerator | protected | function | Gets the random generator for the utility methods. | |
| RandomGeneratorTrait::randomMachineName | protected | function | Generates a unique random string containing letters and numbers. | |
| RandomGeneratorTrait::randomObject | public | function | Generates a random PHP object. | |
| RandomGeneratorTrait::randomString | public | function | Generates a pseudo-random string of ASCII characters of codes 32 to 126. | |
| StandardTest::$format | protected | property | The mocked text format configuration entity. | |
| StandardTest::providerTestDisallowMode | public static | function | Data provider for testDisallowMode(). | |
| StandardTest::providerTestFilterXss | public static | function | Provides test data for testFilterXss(). | |
| StandardTest::setUp | protected | function | Overrides UnitTestCase::setUp | |
| StandardTest::testDisallowMode | public | function | Tests removing disallowed tags and XSS prevention. | |
| StandardTest::testFilterXss | public | function | Tests the method for filtering XSS. | |
| UnitTestCase::$root | protected | property | The app root. | |
| UnitTestCase::getClassResolverStub | protected | function | Returns a stub class resolver. | |
| UnitTestCase::getConfigFactoryStub | public | function | Returns a stub config factory that behaves according to the passed array. | |
| UnitTestCase::getConfigStorageStub | public | function | Returns a stub config storage that returns the supplied configuration. | |
| UnitTestCase::getContainerWithCacheTagsInvalidator | protected | function | Sets up a container with a cache tags invalidator. | |
| UnitTestCase::getStringTranslationStub | public | function | Returns a stub translation manager that just returns the passed string. | |
| UnitTestCase::setUpBeforeClass | public static | function |
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