CVE-2026-113654
ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render
MEDIUM 5.3EPSS 0.4%
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.
- Affected
- apostrophecms · apostrophe · sanitize-html
- CVSS v4.0 GITHUB
- 5.3 MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 5.3 MEDIUM
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 - EPSS
- 0.43% chance of exploitation in the next 30 days, 38th percentile
- Published
- 2026-10-20
- Updated
- 2026-10-28
Proof-of-concept exploits (1)
CVE references
- apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ceREFERENCE
- apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350REFERENCE
- apostrophecms/apostrophe/releases/tag/sanitize-html@2.18.0REFERENCE
- apostrophecms/apostrophe/security/advisories/GHSA-x3q4-9hxx-gx8mREFERENCE