CVE-2026-63670

ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as te...

CVE-2026-63670 ApostropheCMS: Mutation-XSS / allowedTags bypass via literal `</textarea/>` solidus close

ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as te...

CVE-2026-63670

ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as te...

CVE-2026-63670

ApostropheCMS (open-source Node.js CMS) is vulnerable to a mutation XSS in sanitizeHtml() (packages/sanitize-html/index.js) prior to version 2.17.6 . When textarea or xmp is included in allowedTags, a literal solidus after the raw-text end-tag name (e.g., ) is treated as text by htmlparser2 , and...

CVE-2026-63670 ApostropheCMS: Mutation-XSS / allowedTags bypass via literal `</textarea/>` solidus close

ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as te...

PT-2026-76771

Name of the Vulnerable Software and Affected Versions ApostropheCMS versions prior to 2.17.6 Description The sanitizeHtml function in packages/sanitize-html/index.js allows disallowed executable markup to pass through when textarea or xmp are included in allowedTags. This occurs because a literal...

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...