CVE-2026-116888

MediumCVSS 5.4/10Last modified Oct 31, 2026

Description

SemanticMediaWiki from 3.2.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with the smw-schemaedit right to inject markup through an unescaped property group schema canonical_name. Attackers can save a schema whose canonical_name holds script markup, which GroupFormatter renders unescaped in Special:Browse headings, executing JavaScript in viewers' sessions including administrators.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
SemanticMediaWiki	SemanticMediaWiki	>= 3.2.0, < 7.3.1

References

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-fp94-c5vh-cmhpExploit, Mitigation, Vendor Advisory
https://www.vulncheck.com/advisories/semanticmediawiki-3.2.0-before-7.3.1-stored-xss-via-special-browse-group-headingThird Party Advisory
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-fp94-c5vh-cmhpExploit, Mitigation, Vendor Advisory

Timeline

Published: Oct 27, 2026
Last modified: Oct 31, 2026
NVD status: Modified

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