CVE-2026-116879

medium

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.

References

https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-before-7.3.1-missing-authorization-via-smwtask-update-task

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6wrc-864f-6vqp

https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/cba0541d1f931e5c5440a483790dd7c3dec1751d

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-110707

Details

Source: Mitre, NVD

Published: 2026-10-27

Updated: 2026-10-27

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium