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CVE-2026-116879 Details

Description

Semantic MediaWiki from 7.3.0 before 7.3.1 contains a missing authorization vulnerability in the smwtask update task that allows users with edit rights to force semantic updates on arbitrary pages. Attackers can supply a serialized subject parameter for a restricted page to trigger forced reparsing, semantic-store writes, and resource-intensive dependency work.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6wrc-864f-6vqp	CISA-ADP	ExploitMitigationVendor Advisory
https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/cba0541d1f931e5c5440a483790dd7c3dec1751d	[email protected]	Patch
https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6wrc-864f-6vqp	[email protected]	ExploitMitigationVendor Advisory
https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-before-7.3.1-missing-authorization-via-smwtask-update-task	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
semantic-mediawiki semantic mediawiki	>= 7.3.0, < 7.3.1
CPE cpe:2.3:a:semantic-mediawiki:semantic_mediawiki::::::mediawiki::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 4, 2026	CVE Modified	CISA-ADP
Nov 4, 2026	Initial Analysis	[email protected]
Oct 27, 2026	New CVE Received	[email protected]