CVE-2026-116879

Description

Semantic MediaWiki from 7.3.0 before 7.3.1 contains a missing authorization vulnerability in the smwtask update task that allows users with edit rights to force semantic updates on arbitrary pages. Attackers can supply a serialized subject parameter for a restricted page to trigger forced reparsing, semantic-store writes, and resource-intensive dependency work.

References

• https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/cba0541d1f931e5c5440a483790dd7c3dec1751d
• https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6wrc-864f-6vqp
• https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-before-7.3.1-missing-authorization-via-smwtask-update-task