CVE-2026-116886 — Vulnerability intelligence

semantic-mediawiki — semantic mediawiki

Published: 2026-10-27T11:17:30.980

CVSS

5.3

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-116886
• Exploit, Vendor Advisory
• Third Party Advisory