CVE-2026-116886

MEDIUM 5.4

Semantic MediaWiki before 7.3.1 Stored XSS via External Identifier in Special:Browse

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

Semantic MediaWiki from 2.5.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject scripts via External identifier property values. Attackers can annotate markup payloads that ExternalIdentifierValue renders unescaped on Special:Browse, executing JavaScript in viewers' sessions, including administrators.

CWE	CWE-79
Vendor	semanticmediawiki
Product	semanticmediawiki
Published	Oct 27, 2026
Last Updated	Oct 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

SemanticMediaWiki / SemanticMediaWiki

2.5.0 < 7.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-2gfw-3hj2-wfq5 vulncheck.com: https://www.vulncheck.com/advisories/semantic-mediawiki-before-7.3.1-stored-xss-via-external-identifier-in-special-browse

Credits

🔍 manus-pi 🔍 manus-use