CVE-2025-54336

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published8/19/2025

Last Modified8/26/2025

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-697

References

https://blog.aziz.tn/2025/08/cve-2025-54336.html/(cve@mitre.org)

https://support.plesk.com/hc/en-us/articles/33785727869847-Vulnerability-CVE-2025-54336(cve@mitre.org)

https://www.plesk.com/blog/plesk-news-announcements/introducing-plesk-obsidian-18-0-70-anniversary-edition/(cve@mitre.org)

IOC Correlations

No correlations recorded

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