CVE-2020-25812

mediawiki: XSS using raw HTML

Published Sep 27, 2020 CVSS 3.1 · 6.1 Medium EPSS 1.1% KEV · Not listed
Description
An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-4767-1 mediawiki security update
EUVD EUVD EUVD-2022-5186 An issue was discovered in MediaWiki 1.34.x before 1.34.4. On Special:Contributions, the NS filter uses unescaped messages as keys in the option key for an HTMLForm specifier. This is vulnerable to a mild XSS if one of those messages is changed to include raw HTML.
Github GHSA Github GHSA GHSA-rj9p-8jxj-2ch4 MediaWiki Cross-site Scripting (XSS) vulnerability
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 3:40 PM
Reserved
Sep 23, 2020, 12:00 AM
Status
Modified
Published
Sep 27, 2020, 9:15 PM
Modified
Jun 17, 2026, 3:07 AM
Severity
Moderate
Public date
Sep 27, 2020, 12:00 AM