CVE-2025-66571 is a low severity vulnerability with a CVSS score of 0.0. Active exploits exist with no official patch available - immediate mitigation is required.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
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.