---
id: CVE-2026-116890
title: Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask API
summary: >-
  Semantic MediaWiki from 3.0.0 before 7.3.0 contains a missing authorization
  vulnerability in the api.php smwtask module that allows unauthenticated
  attackers to run admin-only maintenance tasks. Attackers can use the public
  anonymous CSR…
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-862
vendor: SemanticMediaWiki
product: SemanticMediaWiki
affected:
  - SemanticMediaWiki >= 3.0.0 < 7.3.0
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-27T13:46:26.251028Z'
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T14:12:54.564Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116890'
references:
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-jr78-w6w5-m8f8
    label: GitHub Security Advisory (GHSA-jr78-w6w5-m8f8)
  - url: >-
      https://www.vulncheck.com/advisories/semantic-mediawiki-3.0.0-before-7.3.0-missing-authorization-via-smwtask-api
    label: >-
      VulnCheck Advisory: Semantic MediaWiki 3.0.0 before 7.3.0 Missing
      Authorization via smwtask API
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.444Z'
---

## Overview

Semantic MediaWiki from 3.0.0 before 7.3.0 contains a missing authorization vulnerability in the api.php smwtask module that allows unauthenticated attackers to run admin-only maintenance tasks. Attackers can use the public anonymous CSRF token to read internal store statistics, enqueue jobs like smw.entityIdDisposer, and execute queued jobs, degrading performance and altering semantic data.

## Affected

- `SemanticMediaWiki >= 3.0.0 < 7.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.