---
id: CVE-2026-116879
title: >-
  Semantic MediaWiki 7.3.0 before 7.3.1 Missing Authorization via smwtask Update
  Task
summary: >-
  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
  subje…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-862
vendor: SemanticMediaWiki
product: SemanticMediaWiki
affected:
  - SemanticMediaWiki >= 7.3.0 < 7.3.1
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T10:26:43.410Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116879'
references:
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6wrc-864f-6vqp
    label: GitHub Security Advisory (GHSA-6wrc-864f-6vqp)
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/commit/cba0541d1f931e5c5440a483790dd7c3dec1751d
  - url: >-
      https://www.vulncheck.com/advisories/semantic-mediawiki-7.3.0-before-7.3.1-missing-authorization-via-smwtask-update-task
    label: >-
      VulnCheck Advisory: Semantic MediaWiki 7.3.0 before 7.3.1 Missing
      Authorization via smwtask Update Task
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.285Z'
---

## Overview

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.

## Affected

- `SemanticMediaWiki >= 7.3.0 < 7.3.1`

## Remediation

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