CVE-2026-113654

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

Published Oct 20, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-x3q4-9hxx-gx8m ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N'}

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Apostrophecms
Apostrophecms apostrophecms
Apostrophecms sanitize-html
Vendors & Products Apostrophecms
Apostrophecms apostrophecms
Apostrophecms sanitize-html
Type Values Removed Values Added
Description 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.
Title ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 28, 2026, 2:01 PM
Reserved
Oct 20, 2026, 2:27 PM
Status
Deferred
Published
Oct 20, 2026, 5:17 PM
Modified
Oct 28, 2026, 2:16 PM
Severity
Moderate
Public date
Oct 20, 2026, 4:35 PM