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  4. CVE 2026 113654 apostrophecms sanitize html nontexttags discard
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-113654GHSA-X3Q4-9HXX-GX8M

ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content renderCVE-2026-113654

Answer in brief

CVE-2026-113654 records a Medium severity (CVSS 5.3) vulnerability in ApostropheCMS sanitize-html: nonTextTags discard region ends early on an implied close, letting <noscript> content render. The current sources do not mark it as known exploited. The current feed maps apostrophecms/apostrophe (generic), apostrophecms/sanitize-html (generic), sanitize-html (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps apostrophecms/apostrophe (generic), apostrophecms/sanitize-html (generic), sanitize-html (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
apostrophecms/apostrophegeneric<4.33.04.33.0
apostrophecms/sanitize-htmlgeneric<2.18.02.18.0
sanitize-htmlnpm<2.18.02.18.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for apostrophecms/apostrophe, apostrophecms/sanitize-html, sanitize-html.
  2. 2Review the reported fix. Update apostrophecms/apostrophe to 4.33.0; apostrophecms/sanitize-html to 2.18.0; sanitize-html to 2.18.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • ApostropheCMS: POST /api/v1/@apostrophecms/doc/slugTaken discloses existence of private/admin-only content to any authenticated userSame apostrophecms/apostrophe package
  • ApostropheCMS: Exposure of Sensitive Information via predictable export filenamesSame apostrophecms/apostrophe package
  • ApostropheCMS: Unauthenticated publicApiProjection bypass via search and sort query builders in the public REST APISame apostrophecms/apostrophe package
  • ApostropheCMS: Import archives can exhaust server storage and deny serviceSame apostrophecms/apostrophe package
  • ApostropheCMS: Archive duplicate continuation lets contributors overwrite published contentSame apostrophecms/apostrophe package
  • ApostropheCMS: GET /api/v1/@apostrophecms/page/:id bypasses viewRole restriction and exposes viewPermission-gated fields to lower-privileged usersSame apostrophecms/apostrophe package

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 20, 2026
References
5 linked sources
Open source record