CVE-2025-6590 MEDIUM

CVE-2025-6590: Complete content leak of private wikis due to PasswordReset Wikitext injection in error message

Vendor Wikimedia Foundation
Product MediaWiki
Weakness CWE-200 · Info exposure
Published February 2, 2026
Last update February 3, 2026
View on NVD All CVEs

CVSS base score

4.6/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

What the vulnerability does

01Description

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/htmlform/fields/HTMLUserTextField.Php. This issue affects MediaWiki: from * through 1.39.12, 1.42.76 1.43.1, 1.44.0.

Key dates

02Disclosure timeline

February 2, 2026 CVE published
February 3, 2026 Record updated