CVE-2026-116890

High

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.

SeverityHigh

CVSS7.3

Exploit probability—

ProductSemantic-mediawiki Semantic Mediawiki

PublishedOct 27, 2026

First seenOct 27, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

semantic-mediawiki semantic_mediawiki7.3.0 or later
mediawiki/semantic-media-wiki7.3.0 or later

Vendor advisories

github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-jr78-w6w5-m8f8

Affected products

Product	Affected versions	Fixed in
semantic-mediawiki semantic_mediawiki	3.0.0 ≤ v < 7.3.0	7.3.0
mediawiki/semantic-media-wikiPackagist	3.0.0 ≤ v < 7.3.0	7.3.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.