CVE-2025-62656 MEDIUM

CVE-2025-62656: GlobalBlocking Special:GlobalBlockList vulnerable to message key stored XSS

Vendor The Wikimedia Foundation
Product MediaWiki GlobalBlocking extension
Weakness CWE-79 · XSS
Published October 20, 2025
Last update October 20, 2025
View on NVD All CVEs

CVSS base score

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

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/S: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 GlobalBlocking extension allows Stored XSS.This issue affects MediaWiki GlobalBlocking extension: 1.43, 1.44.

Key dates

02Disclosure timeline

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