PT-2026-33206 · Wikimedia Foundation+3 · Mediawiki

Published 2026-04-03 · Updated 2026-05-14 · CVE-2026-34092

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.43.7 MediaWiki versions prior to 1.44.4 MediaWiki versions prior to 1.45.2

Description Exposure of sensitive information to an unauthorized actor occurs in the program files includes/Skin/Skin.Php.

Recommendations Update to version 1.43.7 or later. Update to version 1.44.4 or later. Update to version 1.45.2 or later.

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-34092

Affected Products

Mediawiki

References · 12

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-34092 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-34092 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34092 · Security Note
• https://phabricator.wikimedia.org/T384147 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-34092 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-34092 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-34092 · Security Note
• https://lists.wikimedia.org/hyperkitty/list/[e-mail]/thread/DIBLSBHISKX6NFRUFNOGZRVW42E7R2QP · Note
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265638 · Note
• https://twitter.com/CVEnew/status/2053932471075655786 · Twitter Post
• https://t.me/cveNotify/163487 · Telegram Post
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265652 · Note