PT-2026-54635 · Wikimedia Foundation · Oauth

Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-13707

NVD

CVSS v4.0

Base vector

AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Session fixation vulnerability in Wikimedia Foundation OAuth.

This vulnerability is associated with program files src/Backend/MWOAuthServer.Php.

This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Fix

Session Fixation

Weakness Enumeration

CWE-384

Related Identifiers

CVE-2026-13707

Affected Products

Oauth

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-13707 · Security Note
• https://phabricator.wikimedia.org/T428324 · Note