CVE-2025-66571

CRITICAL EPSS 41.9%

Published Dec 4, 20256mo ago · Modified Jun 17, 20262w ago

9.3 CVSS 4.0

Critical

Published Dec 4, 2025 6mo ago

Last Modified Jun 17, 2026 2w ago

Description

UNA CMS versions 9.0.0-RC1 - 14.0.0-RC4 contain a PHP object injection vulnerability in BxBaseMenuSetAclLevel.php where the profile_id POST parameter is passed to PHP unserialize() without proper handling, allowing remote, unauthenticated attackers to inject arbitrary PHP objects and potentially write and execute arbitrary PHP code.

CVSS Details

Base Score

9.3

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

41.9% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-502 Deserialization of Untrusted Data Validation

References 5

github.com https://github.com/unacms/una
karmainsecurity.com https://karmainsecurity.com/KIS-2025-01
unacms.com https://unacms.com
exploit-db.com https://www.exploit-db.com/exploits/52139
vulncheck.com https://www.vulncheck.com/advisories/una-cms-900-rc1-1400-rc4-php-object-injection

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.