CVE-2026-116890

Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask API

State: Published
Severity: 6.9 Medium
Published: Oct 27, 2026
Updated: Oct 27, 2026
Reserved: Oct 27, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N	VulnCheck
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	VulnCheck

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
SemanticMediaWikiSemanticMediaWiki	3.0.0 to before 7.3.0Affected 7.3.0Not affected

References

GitHub Security Advisory (GHSA-jr78-w6w5-m8f8)vendor-advisory
VulnCheck Advisory: Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask APIthird-party-advisory

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