AUGUST 4, 2026
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Case File

CVE-2025-54336

CRITICAL · CVSS 9.8 EPSS 0.51%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-08-19 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. See the original NVD description below for full technical details.

CVE
CVE-2025-54336
Severity
CRITICAL
CVSS
9.8
EPSS
0.51%

Original NVD 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.