---
id: CVE-2026-116888
title: >-
  SemanticMediaWiki 3.2.0 before 7.3.1 Stored XSS via Special:Browse Group
  Heading
summary: >-
  SemanticMediaWiki from 3.2.0 before 7.3.1 contains a stored cross-site
  scripting vulnerability that allows users with the smw-schemaedit right to
  inject markup through an unescaped property group schema canonical_name.
  Attackers can save…
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: SemanticMediaWiki
product: SemanticMediaWiki
affected:
  - SemanticMediaWiki >= 3.2.0 < 7.3.1
published: '2026-10-27'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T10:26:49.509Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116888'
references:
  - url: >-
      https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-fp94-c5vh-cmhp
    label: GitHub Security Advisory (GHSA-fp94-c5vh-cmhp)
  - url: >-
      https://www.vulncheck.com/advisories/semanticmediawiki-3.2.0-before-7.3.1-stored-xss-via-special-browse-group-heading
    label: >-
      VulnCheck Advisory: SemanticMediaWiki 3.2.0 before 7.3.1 Stored XSS via
      Special:Browse Group Heading
tags:
  - cve.org
ingestedAt: '2026-10-27T16:11:59.290Z'
---

## Overview

SemanticMediaWiki from 3.2.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows users with the smw-schemaedit right to inject markup through an unescaped property group schema canonical_name. Attackers can save a schema whose canonical_name holds script markup, which GroupFormatter renders unescaped in Special:Browse headings, executing JavaScript in viewers' sessions including administrators.

## Affected

- `SemanticMediaWiki >= 3.2.0 < 7.3.1`

## Remediation

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