PT-2026-54918 · Wikimedia Foundation · Mediawiki - Wikilambda Extension

Jdforrester-Wmf + 1 · Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-58517

Mitre

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

Improper neutralization of input terminators vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension allows Authentication Bypass.

This issue affects Mediawiki - WikiLambda Extension: from * before 1.43.9,1.44.6,1.45.4.

Fix

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-288

Related Identifiers

CVE-2026-58517

Affected Products

Mediawiki - Wikilambda Extension

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-58517 · Security Note
• https://phabricator.wikimedia.org/T428833 · Note
• https://gerrit.wikimedia.org/r/c/1305376 · Note