CVE-2026-65902 DOMPurify before 3.4.7 Hook Mutation Pollution via allowedTags

DOMPurify before 3.4.7 affected versions = 3.4.5 passes direct references to the module-level DEFAULTALLOWEDTAGS and DEFAULTALLOWEDATTR sets to the uponSanitizeElement and uponSanitizeAttribute hooks via data.allowedTags / data.allowedAttributes when sanitize is called without an explicit...

CVE-2026-65902 DOMPurify before 3.4.7 Hook Mutation Pollution via allowedTags

DOMPurify before 3.4.7 affected versions = 3.4.5 passes direct references to the module-level DEFAULTALLOWEDTAGS and DEFAULTALLOWEDATTR sets to the uponSanitizeElement and uponSanitizeAttribute hooks via data.allowedTags / data.allowedAttributes when sanitize is called without an explicit...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the sanitization process when SVG reference elements such as or are included in the overridden allowed tags. An attacker can execute arbitrary scripts or load external resources by crafting SVG elements with...

Cross-Site Scripting (XSS)

DOMPurify is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to hooks being able to modify live references to the default ALLOWEDTAGS and ALLOWEDATTR sets, which permanently alters the sanitizer's default configuration and allows an attacker to persistently bypass sanitization by...

SUSE CVE-2026-40186

ApostropheCMS is an open-source Node.js content management system. A regression introduced in commit 49d0bb7, included in versions 2.17.1 of the ApostropheCMS-maintained sanitize-html package bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option...

DOMPurify: Hook mutation of `data.allowedTags` / `data.allowedAttributes` permanently pollutes `DEFAULT_ALLOWED_TAGS` / `DEFAULT_ALLOWED_ATTR`

Hook mutation of data.allowedTags / data.allowedAttributes permanently pollutes DEFAULTALLOWEDTAGS / DEFAULTALLOWEDATTR CWE: CWE-501 Trust Boundary Violation — hook-scoped mutation leaks to global default sets via CWE-693 Protection Mechanism Failure — the default allow-list is silently widened f...

GHSA-76MC-F452-CXCM DOMPurify: Hook mutation of `data.allowedTags` / `data.allowedAttributes` permanently pollutes `DEFAULT_ALLOWED_TAGS` / `DEFAULT_ALLOWED_ATTR`

Hook mutation of data.allowedTags / data.allowedAttributes permanently pollutes DEFAULTALLOWEDTAGS / DEFAULTALLOWEDATTR CWE: CWE-501 Trust Boundary Violation — hook-scoped mutation leaks to global default sets via CWE-693 Protection Mechanism Failure — the default allow-list is silently widened f...

CVE-2026-40186

A flaw was found in the sanitize-html package, a dependency of ApostropheCMS. A remote attacker could exploit a regression in sanitize-html versions prior to 2.17.2, which incorrectly handles entity decoding within textarea and option HTML elements. This allows an attacker to bypass the allowedTa...

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

Possible XSS Vulnerability in Rails::Html::Sanitizer There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer. This vulnerability has been assigned the CVE identifier CVE-2022-32209. Vulnerabilities affected: ALL Not affected: NONEMeaning: Fixed versions: v1.4.3...

Astra Linux – Vulnerability in python-bleach

A mutation XSS affects users who call bleachclean with any of the following tags: svg or math within the allowed tags p or br in allowed tags, style, title, noscript, script, textarea, noframes, iframe, or xmp within allowed tags. The keyword argument is stripcomments=False. Note: None of the abo...

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

Rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there was a potential XSS vulnerability with certain configurations of Rails::Html::Sanitizer, due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer might allow an attacke...

EUVD-2026-23110

sanitize-html allowedTags Bypass via Entity-Decoded Text in nonTextTags Elements...

GHSA-9MRH-V2V3-XPFM sanitize-html allowedTags Bypass via Entity-Decoded Text in nonTextTags Elements

Summary Commit 49d0bb7 introduced a regression in sanitize-html that bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option. Entity-encoded HTML inside these elements passes through the sanitizer as decoded, unescaped HTML, allowing injection of arbitrary...

sanitize-html allowedTags Bypass via Entity-Decoded Text in nonTextTags Elements

Summary Commit 49d0bb7 introduced a regression in sanitize-html that bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option. Entity-encoded HTML inside these elements passes through the sanitizer as decoded, unescaped HTML, allowing injection of arbitrary...

Cross-site Scripting (XSS)

Overview sanitize-html is a library that allows you to clean up user-submitted HTML, preserving whitelisted elements and whitelisted attributes on a per-element basis Affected versions of this package are vulnerable to Cross-site Scripting XSS in sanitizeHtml, when entity-encoded text is present...

CVE-2026-40186

ApostropheCMS is an open-source Node.js content management system. A regression introduced in commit 49d0bb7, included in versions 2.17.1 of the ApostropheCMS-maintained sanitize-html package bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option...

CVE-2026-40186 ApostropheCMS: sanitize-html allowedTags Bypass via Entity-Decoded Text in nonTextTags Elements

ApostropheCMS is an open-source Node.js content management system. A regression introduced in commit 49d0bb7, included in versions 2.17.1 of the ApostropheCMS-maintained sanitize-html package bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option...

CVE-2026-40186

ApostropheCMS is affected by CVE-2026-40186 due to a regression in sanitize-html (commit 49d0bb7) that bypasses allowedTags for text inside nonTextTagsArray elements (textarea, option). Versions: the vulnerability exists in ApostropheCMS 4.28.0 via its sanitize-html dependency (2.17.1). The root ...

CVE-2026-40186 ApostropheCMS: sanitize-html allowedTags Bypass via Entity-Decoded Text in nonTextTags Elements

ApostropheCMS is an open-source Node.js content management system. A regression introduced in commit 49d0bb7, included in versions 2.17.1 of the ApostropheCMS-maintained sanitize-html package bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option...

CVE-2026-40186

ApostropheCMS is an open-source Node.js content management system. A regression introduced in commit 49d0bb7, included in versions 2.17.1 of the ApostropheCMS-maintained sanitize-html package bypasses allowedTags enforcement for text inside nonTextTagsArray elements textarea and option...