[ CVE-2026-116890 · Published 27 Oct 2026 ]

Vulnerability in SemanticMediaWiki

CVSS 7.3 EPSS <1%No fix listed yet

[ Description ]Official description

Semantic MediaWiki from 3.0.0 before 7.3.0 contains a missing authorization vulnerability in the api.php smwtask module that allows unauthenticated attackers to run admin-only maintenance tasks. Attackers can use the public anonymous CSRF token to read internal store statistics, enqueue jobs like smw.entityIdDisposer, and execute queued jobs, degrading performance and altering semantic data.

[ 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

github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-jr78-w6w5-m8f8ExploitMitigationVendor Advisory
www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.0-missing-authorizatio…Third Party Advisory