OWASPBugBounty

OWASP Bug Bounty for Projects Introduction Many developers and companies looking to implement security are turning towards OWASP to use Defender libraries that they can implement to secure their critical applications. Since this implies a form of trust in OWASP, many users of these projects might...

sanitize

Sanitize Sanitize is an allowlist-based HTML and CSS sanitizer. It removes all HTML and/or CSS from a string except the elements, attributes, and properties you choose to allow. Using a simple configuration syntax, you can tell Sanitize to allow certain HTML elements, certain attributes within...

java-html-sanitizer

OWASP Java HTML Sanitizer A fast and easy to configure HTML Sanitizer written in Java which lets you include HTML authored by third-parties in your web application while protecting against XSS. The existing dependency is on JSR 305. The other jars are only needed by the test suite. The JSR 305...

TYPO3-HTML-Sanitizer-XSS-CVE-2023-47125

Stored XSS exploit in TYPO3 HTML Sanitizer CVE-2023-47125 Description DOM processing instructions are not handled correctly. This allows bypassing the cross-site scripting mechanism of typo3/html-sanitizer. Vuln versions = 1.0.0, = 2.0.0,...

HTMLawed

HTMLawed is ... ... a single-file, 45 kb PHP script that makes input text more secure, HTML standards-compliant, and suitable in general from the viewpoint of a web-page administrator, for use in the body of HTML, XHTML or XML documents. A simple HTMLTidy alternative, the htmLawed filter,...

bleach

====== Bleach NOTE: 2026-06-05: Bleach is no longer maintained. There will be no future releases including for security issues. See issue: Bleach is an allowed-list-based HTML sanitizing library that escapes or strips markup and attributes. Bleach can also linkify text safely, applying filters th...

CVE-2026-114729

A flaw was found in Roundcube Webmail. A remote attacker can exploit this vulnerability by sending a specially crafted HTML email containing Scalable Vector Graphics SVG animations with an unvalidated animation attribute. The application's HTML sanitizer fails to inspect this attribute for remote...

CVE-2026-93630

The Zimbra Collaboration Suite (ZCS) versions 10.1.16 and 10.1.21 are vulnerable to a hostname canonicalization issue in their email HTML sanitizers. The DefangFilter and OWASP ActionAttributePolicy components fail to properly handle percent-encoded hostnames, comparing them against the request h...

CVE-2026-93630 Zimbra Collaboration Suite Email HTML Sanitizer Bypass via Hostname Canonicalization

A hostname canonicalization vulnerability in the email HTML sanitizers of Zimbra Collaboration Suite ZCS allows an unauthenticated sender to bypass the restriction on forms that target the Zimbra host. DefangFilter and the OWASP ActionAttributePolicy compare the form-action hostname with the...

CVE-2026-113654

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default nonTextTags configuration that includes noscript can end its discard region early when htmlparser2 emits an implied...

EUVD-2026-105209

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default configuration that allows meta refresh elements and their http-equiv and content attributes can retain unsafe script...

CVE-2026-113654 ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default nonTextTags configuration that includes noscript can end its discard region early when htmlparser2 emits an implied...

CVE-2026-113654

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default nonTextTags configuration that includes noscript can end its discard region early when htmlparser2 emits an implied...

CVE-2026-113654 ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default nonTextTags configuration that includes noscript can end its discard region early when htmlparser2 emits an implied...

CVE-2026-113654 ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Prior to sanitize-html 2.18.0, a non-default nonTextTags configuration that includes noscript can end its discard region early when htmlparser2 emits an implied...

CVE-2026-113654

The sanitize-html library, used in ApostropheCMS , is vulnerable to a logic error in its handling of nonTextTags configurations. Specifically, when noscript is included in a non-default configuration, the discard region can end prematurely because htmlparser2 emits an implied ancestor close. This...

CLEANSTART-2026-PZ98316 OWASP Java HTML Sanitizer is a configureable HTML Sanitizer written in Java, allowing inclusion of HTML authored by third-parties in web applications while protecting against XSS

Security vulnerability affects the keycloak package. OWASP Java HTML Sanitizer is a configureable HTML Sanitizer written in Java, allowing inclusion of HTML authored by third-parties in web applications while protecting against XSS...

PT-2026-132986

Security vulnerability affects the keycloak package. OWASP Java HTML Sanitizer is a configureable HTML Sanitizer written in Java, allowing inclusion of HTML authored by third-parties in web applications while protecting against XSS...

CVE-2026-63430

ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.2, 4.0.2, and 4.1.3, applications that explicitly allow the math tag, annotation-xml, and at least one raw-text HTML element while disallowing the encoding attribute can permit mutation cross-site scripting. ammonia...

Astra Linux – vulnerability in ruby-rails-html-sanitizer

Rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer prior to version 1.4.4 utilize an inefficient regular expression that is prone to excessive backtracking when processing certain SVG attributes. This can result ...