BaseFortify

Publication date: 2025-10-17

Last updated on: 2026-04-29

Assigner: wikimedia-foundation

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-17

Last Modified

2026-04-29

Generated

2026-07-07

AI Q&A

2025-10-18

EPSS Evaluated

2026-07-05

NVD

CVE-2025-62652

Affected Vendors & Products

Vendor	Product	Version / Range
the_wikimedia_foundation	mediawiki_webauthn_extension	1.39
the_wikimedia_foundation	mediawiki_webauthn_extension	1.43
the_wikimedia_foundation	mediawiki_webauthn_extension	1.44

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a Stored Cross-site Scripting (XSS) issue in the MediaWiki WebAuthn extension. It occurs because the extension improperly neutralizes input during web page generation, allowing malicious scripts to be stored and executed in users' browsers when they view affected pages.

Impact Analysis

The vulnerability can allow attackers to execute malicious scripts in the context of users' browsers, potentially leading to unauthorized actions, theft of sensitive information, session hijacking, or other malicious activities that compromise user security and privacy.

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