CVE-2026-66567: CWE-502 Deserialization of Untrusted Data in AncoraThemes Anesta
Description
CVE-2026-66567 is a critical vulnerability in AncoraThemes Anesta versions up to 1.5.3 that allows unauthenticated PHP Object Injection due to deserialization of untrusted data. This flaw can lead to full system compromise without requiring user interaction or privileges.
CVSS v3.1
Score 9.8critical
Affected software
AncoraThemes
Anesta
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-502) involves unsafe deserialization of untrusted data in AncoraThemes Anesta versions up to 1.5.3. An attacker can exploit this flaw without authentication to perform PHP Object Injection, potentially resulting in remote code execution or complete system compromise. The CVSS 3.1 base score is 9.8, reflecting network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation can lead to full system compromise, including remote code execution, data disclosure, and service disruption. The vulnerability requires no authentication and can be triggered remotely, making it highly severe.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to vulnerable endpoints and monitor for suspicious activity related to PHP object deserialization.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-07-27T13:59:48.657Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aca96c12cdf04f6564a604b
Added to database: 10/10/2026, 19:49:21 UTC
Last enriched: 10/10/2026, 20:03:40 UTC
Last updated: 10/10/2026, 20:08:23 UTC
Views: 7
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