Vulnerability · Published Oct 17, 2025 · Assigned by wikimedia-foundation
CVE-2025-62652Stored XSS in WebAuthn key name
Medium 5.8
In plain English
A medium-severity cross-site scripting in MediaWiki WebAuthn extension from The Wikimedia Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 4.0)5.8Medium
Exploit odds (30 days)0.4%top 66.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Wikimedia Foundation | MediaWiki WebAuthn extension | 1.391.431.44 |
Weakness: CWE-79 · 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