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CVE-2025-54336

CRITICAL
Published 2025-08-19T00:00:00.000Z
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Expert Analysis

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CVSS Score

V3.1
9.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

EU Vulnerability Database

Monitored by ENISA for EU cybersecurity

EU Coordination

EU Coordinated

Exploitation Status

No Known Exploitation

ENISA Analysis

Malicious code in bioql (PyPI)

Affected Products (ENISA)

n/a
n/a

ENISA Scoring

CVSS Score (3.1)

9.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score

0.060
probability

Data provided by ENISA EU Vulnerability Database. Last updated: October 3, 2025

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-8h52-4p7x-v4mc

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Advisory provided by GitHub Security Advisory Database. Published: August 19, 2025, Modified: August 26, 2025

Social Media Intelligence

Real-time discussions and threat intelligence from social platforms

2 posts
Reddit 1 month, 2 weeks ago
crstux
Exploit PoC

🔥 Top 10 Trending CVEs (23/08/2025) Here’s a quick breakdown of the 10 most interesting vulnerabilities trending today: **1. [CVE-2025-9074](https://nvd.nist.gov/vuln/detail/CVE-2025-9074)** - 📝 A vulnerability was identified in Docker Desktop that allows local running Linux containers to access the Docker Engine API via the configured Docker subnet, at 192.168.65.7:2375 by default. …

1
1.0
View Original High Risk
Reddit 1 month, 2 weeks ago
crstux
Exploit

🔥 Top 10 Trending CVEs (22/08/2025) Here’s a quick breakdown of the 10 most interesting vulnerabilities trending today: **1. [CVE-2025-54336](https://nvd.nist.gov/vuln/detail/CVE-2025-54336)** - 📝 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 …

1
1.0
View Original High Risk

References

Published: 2025-08-19T00:00:00.000Z
Last Modified: 2025-08-26T14:42:09.453Z
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