---
id: CVE-2026-116889
title: >-
  SemanticMediaWiki 2.5.0 before 7.3.1 Stored XSS via Special:Browse Code
  Property
summary: >-
  SemanticMediaWiki from 2.5.0 before 7.3.1 contains a stored cross-site
  scripting vulnerability that allows users with page-edit rights to inject
  script through Code-typed property values. Attackers can annotate a valid JSON
  value embeddi…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: SemanticMediaWiki
product: SemanticMediaWiki
affected:
  - SemanticMediaWiki >= 2.5.0 < 7.3.1
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T10:26:50.188Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116889'
references:
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-6v7f-crgp-hhvp
    label: GitHub Security Advisory (GHSA-6v7f-crgp-hhvp)
  - url: >-
      https://www.vulncheck.com/advisories/semanticmediawiki-2.5.0-before-7.3.1-stored-xss-via-special-browse-code-property
    label: >-
      VulnCheck Advisory: SemanticMediaWiki 2.5.0 before 7.3.1 Stored XSS via
      Special:Browse Code Property
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.287Z'
---

## Overview

SemanticMediaWiki from 2.5.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with page-edit rights to inject script through Code-typed property values. Attackers can annotate a valid JSON value embedding HTML markup, which the CodeStringValueFormatter renders unescaped on Special:Browse, executing JavaScript in viewers' sessions.

## Affected

- `SemanticMediaWiki >= 2.5.0 < 7.3.1`

## Remediation

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