What is CVE-2026-116873?

CVE-2026-116873 is a high-severity vulnerability in Semanticmediawiki, classified under Missing Authorization. CVSS score: 7.3/10. Published 2026-10-27.

How severe is CVE-2026-116873?

High severity. CVSS v3 base score is 7.3 out of 10.

Auth bypass in Semanticmediawiki

CVE-2026-116873

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.

Vulnerability class: Broken Access Control

Published 2026-10-27 · last modified 2026-10-27.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Semanticmediawiki

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-rjqv-6r… (vendor-advisory)
www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-missing-authorization-via… (third-party-advisory)

Frequently asked questions

What is CVE-2026-116873?: CVE-2026-116873 is a high-severity vulnerability in Semanticmediawiki, classified under Missing Authorization. CVSS score: 7.3/10. Published 2026-10-27.
How severe is CVE-2026-116873?: High severity. CVSS v3 base score is 7.3 out of 10.