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5.9

MediaWiki WebAuthn extension allows hackers to inject malicious code into pages

CVE-2025-62652 · published 1 year ago
Summary

A security flaw in the MediaWiki WebAuthn extension allows hackers to inject malicious code into Wikimedia pages. This can lead to unauthorized access to user accounts or sensitive information. The affected versions are 1.39, 1.43, and 1.44, so update the extension to the latest version to fix the issue.

Original advisory text
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki WebAuthn extension allows Stored XSS.This issue affec...
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki WebAuthn extension allows Stored XSS.This issue affects MediaWiki WebAuthn extension: 1.39, 1.43, 1.44.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
Timeline
Published17 Oct 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-62652 · NVD
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