PT-2026-33207 · Wikimedia Foundation+3 · Mediawiki

Published 2026-04-03 · Updated 2026-05-18 · CVE-2026-34093

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 file includes/Specials/SpecialUserRights.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-2026-34093

Affected Products

Mediawiki

References · 12

• https://osv.dev/vulnerability/UBUNTU-CVE-2026-34093 · Vendor Advisory
• https://phabricator.wikimedia.org/T414547 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-34093 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-34093 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-34093 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-34093 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-34093 · Vendor Advisory
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265667 · Note
• https://twitter.com/CVEnew/status/2053932421989756931 · Twitter Post
• https://lists.wikimedia.org/hyperkitty/list/[e-mail]/thread/DIBLSBHISKX6NFRUFNOGZRVW42E7R2QP · Note
• https://t.me/cveNotify/163848 · Telegram Post
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265639 · Note