PT-2026-54898 · Mediawiki · Mediawiki

Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-58029

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.46.0 MediaWiki versions prior to 1.45.4 MediaWiki versions prior to 1.44.6 MediaWiki versions prior to 1.43.9

Description An issue exists that allows for full account takeover via BotPasswords and OAuth. The flaw is associated with the action=changeauthenticationdata parameter and involves the following program files: includes/Api/ApiChangeAuthenticationData.Php, includes/Api/ApiLinkAccount.Php, includes/Api/ApiRemoveAuthenticationData.Php, includes/Specials/SpecialLinkAccounts.Php, and includes/Specials/SpecialUnlinkAccounts.Php.

Recommendations Update to version 1.46.0 or later. Update to version 1.45.4 or later. Update to version 1.44.6 or later. Update to version 1.43.9 or later.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-58029

Affected Products

Mediawiki

References · 12

• https://osv.dev/vulnerability/CVE-2026-58029 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-58029 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-58029 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-58029 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-58029 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-58029 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-58029 · Vendor Advisory
• https://phabricator.wikimedia.org/T422676 · Note
• https://t.me/CVEtracker/58592 · Telegram Post
• http://phabricator.wikimedia.org/T422676 · Note
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1306313 · Note
• https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1306215 · Note