SemanticMediaWiki Semantic MediaWiki up to 7.3.0 Smwtask Api improper authorization

Summaryinfo

A vulnerability marked as critical has been reported in SemanticMediaWiki Semantic MediaWiki up to 7.3.0. This issue affects some unknown processing of the component Smwtask Api Module. This manipulation causes improper authorization. This vulnerability appears as CVE-2026-116873. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in SemanticMediaWiki Semantic MediaWiki up to 7.3.0. Affected by this vulnerability is an unknown code of the component Smwtask Api Module. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Semantic MediaWiki from 7.3.0 before 7.3.1 contains a missing authorization vulnerability in the smwtask API module that allows unauthenticated attackers to run queued jobs and force store updates. Attackers can use the public anonymous CSRF token with run-joblist to execute arbitrary job types in unbounded counts, or invoke update on sysop-protected pages, leaking page titles and exhausting resources.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-116873 since 10/27/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 7.3.1 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• SemanticMediaWiki

Name

• Semantic MediaWiki

Version

• 7.0
• 7.1
• 7.2
• 7.3.0

CPE 2.3info

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CPE 2.2info

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