Post Grid and Gutenberg Blocks <= 2.3.11 - Authenticated (Contributor+) PHP Object Injection

8.8
Deserialization of Untrusted Data
CVE CVE-2025-54007
CVSS 8.8 (High)
Publicly Published August 6, 2025
Last Updated August 11, 2025
Researcher Ananda Dhakal

Description

The Post Grid and Gutenberg Blocks plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 2.3.11 via deserialization of untrusted input. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

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Vulnerability Details for Post Grid

Software Type Plugin
Software Slug post-grid (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.3.12, or a newer patched version
Affected Version
  • <= 2.3.11
Patched Version
  • 2.3.12

Recent vulnerabilities in Post Grid

# Title CVE ID CVSS Researchers Date
1 Post Grid and Gutenberg Blocks <= 2.3.21 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-68605 6.4 Muhammad Yudha - DJ December 21, 2025
2 Post Grid and Gutenberg Blocks <= 2.3.19 - Unauthenticated Insecure Direct Object Reference CVE-2025-63043 5.3 Doan Dinh Van (d52v) December 3, 2025
3 Post Grid and Gutenberg Blocks <= 2.3.17 - Missing Authorization CVE-2025-66058 4.3 Abu Hurayra (HurayraIIT) October 4, 2025
4 Post Grid and Gutenberg Blocks <= 2.3.17 - Missing Authorization CVE-2025-62924 4.3 Abu Hurayra (HurayraIIT) October 4, 2025
5 Post Grid and Gutenberg Blocks – ComboBlocks <= 2.3.6 - Unauthenticated User Information Exposure CVE-2024-13796 5.3 wesley (wcraft) February 27, 2025
6 Post Grid and Gutenberg Blocks – ComboBlocks <= 2.3.5 - Unauthenticated Paid Order Creation CVE-2024-13798 5.3 wesley (wcraft) February 21, 2025
7 Post Grid and Gutenberg Blocks 2.2.85 - 2.3.3 - Unauthenticated Privilege Escalation CVE-2024-9636 9.8 wesley (wcraft) January 14, 2025
8 Post Grid and Gutenberg Blocks <= 2.2.92 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-9645 6.4 Dmitrii Ignatyev January 14, 2025
9 Post Grid and Gutenberg Blocks <= 2.2.93 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-50432 6.4 João Pedro Soares de Alcântara October 24, 2024
10 Post Grid and Gutenberg Blocks <= 2.2.89 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2024-47340 6.4 João Pedro Soares de Alcântara September 27, 2024

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