CVE-2026-32563: CWE-502 Deserialization of Untrusted Data in A CPT ACPT (Pro) - Custom Post Types Plugin for WordPress
Description
CVE-2026-32563 is a critical vulnerability in the ACPT (Pro) - Custom Post Types Plugin for WordPress, affecting versions up to and including 2.0.63. It involves PHP Object Injection due to deserialization of untrusted data, classified under CWE-502. The vulnerability allows remote attackers to execute arbitrary code without authentication, impacting confidentiality, integrity, and availability.
CVSS v3.1
Score 9.8critical
Affected software
A CPT
ACPT (Pro) - Custom Post Types Plugin for WordPress
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a PHP Object Injection flaw in the ACPT (Pro) - Custom Post Types Plugin for WordPress versions <= 2.0.63. It arises from unsafe deserialization of untrusted data, enabling an unauthenticated attacker to inject malicious PHP objects. The CVSS 3.1 score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vulnerability affects confidentiality, integrity, and availability of the affected system.
Potential Impact
Successful exploitation can lead to full compromise of the affected WordPress site, including remote code execution, data disclosure, and service disruption. The vulnerability has a critical CVSS score of 9.8, reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
No official patch or remediation is currently available. Users should monitor the vendor's advisory for updates and consider disabling or removing the affected plugin version until a fix is released. Applying general security best practices such as restricting plugin usage and limiting exposure may reduce risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-03-12T11:12:48.311Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8cbd28acd9273b492d3da9
Added to database: 08/24/2026, 21:52:40 UTC
Last enriched: 09/10/2026, 08:22:51 UTC
Last updated: 10/08/2026, 18:48:45 UTC
Views: 67
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