CVE-2025-54007
Published: 20 August 2025
Summary
CVE-2025-54007 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 36.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly requires timely patching of the deserialization flaw in the Post Grid and Gutenberg Blocks plugin versions <=2.3.11 to eliminate the object injection vulnerability.
Mandates validation of untrusted data inputs prior to deserialization, preventing exploitation of the CWE-502 object injection in the plugin.
Requires regular vulnerability scanning to identify systems affected by CVE-2025-54007 in the vulnerable plugin versions.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
PHP object injection via untrusted deserialization in a public-facing WordPress plugin directly enables remote exploitation (T1190) by low-privileged users to achieve full confidentiality/integrity/availability impact, constituting exploitation for privilege escalation (T1068).
NVD Description
Deserialization of Untrusted Data vulnerability in PickPlugins Post Grid and Gutenberg Blocks post-grid allows Object Injection.This issue affects Post Grid and Gutenberg Blocks: from n/a through <= 2.3.11.
Deeper analysisAI
CVE-2025-54007 is a Deserialization of Untrusted Data vulnerability (CWE-502) in the PickPlugins Post Grid and Gutenberg Blocks post-grid WordPress plugin, enabling Object Injection. This issue affects all versions from n/a through 2.3.11, as published on 2025-08-20.
The vulnerability carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Low-privileged authenticated users, such as WordPress contributors, can exploit it remotely with low attack complexity and no user interaction, potentially achieving high impacts on confidentiality, integrity, and availability via malicious object deserialization.
The Patchstack advisory at https://patchstack.com/database/Wordpress/Plugin/post-grid/vulnerability/wordpress-post-grid-and-gutenberg-blocks-plugin-2-3-11-php-object-injection-vulnerability?_s_id=cve details the vulnerability in the WordPress Post Grid and Gutenberg Blocks plugin version 2.3.11.
Details
- CWE(s)