CVE-2021-30154

mediawiki: XSS due to unescaped messages used in HTML on Special:NewFiles

Published Apr 6, 2021 CVSS 3.1 · 6.1 Medium EPSS 1.3% KEV · Not listed
Description
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

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-4889-1 mediawiki security update
EUVD EUVD EUVD-2021-17090 An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 3, 2024, 10:24 PM
Reserved
Apr 6, 2021, 12:00 AM
Status
Modified
Published
Apr 6, 2021, 7:15 AM
Modified
Jun 17, 2026, 3:49 AM
Severity
Moderate
Public date
Mar 22, 2021, 12:00 AM