VULNERABILITY INTELLIGENCE
CVE-2025-54336
CVSS score9.8 CRITICAL
EPSS probability0.55%
CISA KEVNot currently listed
Published2025-08-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In Plesk Obsidian 18.0.70, _isAdminPasswordValid uses an == comparison. Thus, if the correct password is "0e" followed by any digit string, then an attacker can login with any other string that evaluates to 0.0 (such as the 0e0 string). This occurs in admin/plib/LoginManager.php.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-697