PT-2025-42861 · Mediawiki · Checkuser Extension+1

Abi + 1 · Published 2025-10-21 · Updated 2025-10-21 · CVE-2025-62699

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Name of the Vulnerable Software and Affected Versions Mediawiki - CheckUser Extension versions prior to 1.39

Description A flaw exists within the CheckUser Extension of Mediawiki that can lead to the exposure of sensitive information to unauthorized actors, specifically enabling footprinting. This issue impacts the Mediawiki - CheckUser Extension.

Recommendations Update to a version newer than 1.39.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2025-62699

Affected Products

Checkuser Extension

Mediawiki

References · 9

• https://cve.org/CVERecord?id=CVE-2025-62699 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-62699 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-62699 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-62699 · Vendor Advisory
• https://phabricator.wikimedia.org/T399627 · Note
• https://t.me/CVEtracker/35378 · Telegram Post
• https://twitter.com/CVEnew/status/1980488863798690243 · Twitter Post
• https://gerrit.wikimedia.org/r/q/Idac164418362c65d0ad37055fe9e0ad134197da3 · Note
• https://gerrit.wikimedia.org/r/q/I65c740c8ca5130b40463d687e2f0775951abbf22 · Note