All vulnerabilities
CVE-2026-116886GHSA-2gfw-3hj2-wfq5

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

SemanticMediaWiki SemanticMediaWiki
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in7.3.1Fixed versionCVE List
Published27 Oct 2026Updated 27 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 2

  • SemanticMediaWikiaffected: 2.5.0 before 7.3.1CVE List
  • SemanticMediaWikiunaffected: 7.3.1CVE List

References 2