Vulnerability · Published Oct 27, 2026 · Assigned by VulnCheck

CVE-2026-116873Semantic MediaWiki 7.3.0 Missing Authorization via smwtask API run-joblist and update

High 7.3

In plain English

A high-severity missing authorization in SemanticMediaWiki from SemanticMediaWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.2%top 90.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
SemanticMediaWiki	SemanticMediaWiki	7.3.0 – before 7.3.1

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

GitHub Security Advisory (GHSA-rjqv-6r83-pg8v) vendor-advisory
VulnCheck Advisory: Semantic MediaWiki 7.3.0 Missing Authorization via smwtask API run-joblist and update third-party-advisory