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[ CVE-2026-116884 · Published 27 Oct 2026 ]

Vulnerability in SemanticMediaWiki

CVSS 6.1 EPSS <1%No fix listed yet

[ Why it matters ]Priority signals

  • Public proof-of-concept exploit exists (CISA SSVC)

[ Description ]Official description

SemanticMediaWiki from 5.0.0 before 7.3.1 contains a stored cross-site scripting vulnerability in ext.smw.tooltip.tippy.js that renders data-* attributes via innerHTML with allowHTML enabled. Editors can plant a .smw-highlighter span with a malicious data-content, data-title, data-top, data-bottom, or data-theme attribute to execute JavaScript when viewers, including administrators, hover it.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References