CVE-2025-62652 MEDIUM

CVE-2025-62652: Stored XSS in WebAuthn key name

Vendor The Wikimedia Foundation
Product MediaWiki WebAuthn extension
Weakness CWE-79 · XSS
Published October 17, 2025
Last update October 20, 2025

CVSS base score

5.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:C/RE:L/U:Amber

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 17, 2025 CVE published
October 20, 2025 Record updated