2026-05-11

CVE-2026-34093 May 11, 16:48 LOW PATCH Monitor

MediaWiki's SpecialUserRights.php exposes sensitive information to authenticated low-privilege users across versions prior to 1.43.7, 1.44.4, and 1.45.2. The vulnerability resides in the user rights management special page, where insufficient access controls allow a logged-in actor with minimal privileges to read confidential data - likely user group memberships, rights assignments, or related administrative details - that should be restricted to privileged operators. No public exploit exists and SSVC rates exploitation as none, placing this firmly in low-urgency patch territory despite its network-accessible attack vector.