High 7.3Published Oct 27, 2026

CVE-2026-116890Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask API

Updated under an hour ago (Oct 30, 2026, 2:30 AM ET)

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It affects SemanticMediaWiki. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 27, 2026
First seen by InfoSec Signals: Oct 27, 2026

Affected products

Affected products

SemanticMediaWiki SemanticMediaWiki semanticmediawiki:semanticmediawiki (from the name)	from 3.0.0 before 7.3.0; 7.3.0 not affected	CNA record

References

References

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-jr78-w6w5-m8f8	vendor-advisory
https://www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.0-missing-authorization-via-smwtask-api	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.