ClipBucket v5 <= 5.5.2 - Unauthenticated Blind SQL Injection

ClipBucket v5.5.2-187 and below contain a blind SQL injection caused by unsanitized objid parameter in /actions/ajax.php used in userexists function, letting attackers perform blind SQL injection remotely, exploit requires crafted POST request. id: CVE-2026-21875 info: name: ClipBucket v5 = 5.5.2...