CVE-2026-113654mediumCWE-79

CVE-2026-113654: medium-severity vulnerability in apostrophecms apostrophe

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

Published · Updated

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
exploitation probability
0.3%top 72% of all CVEs
observed exploitation
nono source reports it
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 ancestor close inside noscript. Because scripting-enabled browsers treat noscript content as raw text while the parser does not model that mode, content intended to remain inert can survive sanitization and render; the issue does not generalize to every default nonTextTags element. This issue is fixed in sanitize-html 2.18.0.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
apostrophecms · apostropheapostrophecms · sanitize-html
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References
https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845cehttps://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350https://github.com/apostrophecms/apostrophe/releases/tag/sanitize-html@2.18.0https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-x3q4-9hxx-gx8m