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CVE-2025-66571

Good to know:

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Date: December 4, 2025

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.

Severity Score

Related Resources (7)

https://github.com/unacms/una
https://www.vulncheck.com/advisories/una-cms-900-rc1-1400-rc4-php-object-injection
https://karmainsecurity.com/KIS-2025-01
https://www.exploit-db.com/exploits/52139
https://nvd.nist.gov/vuln/detail/CVE-2025-66571
https://unacms.com
https://www.mend.io/vulnerability-database/CVE-2025-66571

Severity Score

Weakness Type (CWE)

Deserialization of Untrusted Data

CWE-502

Top Fix

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Upgrade Version

Upgrade to version https://github.com/unacms/UNA.git - 14.0.0-RC5

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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