Vulnerability Report
Plugin High Patch path listed CVE-2021-4450

Post Grid <= 2.1.12 - Contributor+ SQL Injection

The Post Grid plugin for WordPress is vulnerable to blind SQL Injection via post metadata in versions up to, and including, 2.1.12 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with contributor-level permissions and above to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.

Quick Answer

CVE-2021-4450 is a high severity with CVSS 8.8 SQL Injection issue affecting the Plugin Post Grid. It affects Versions before 2.1.13 and is fixed in 2.1.13.

Published
Dec 15, 2021
Last Updated
Oct 16, 2024
Slug
post-grid
Operational Summary

What the operator needs to know

Patch Status
Patched release is available
Remediation
Update to version 2.1.13, or a newer patched version
Operator Briefing

CVE-2021-4450 is tracked for the Plugin Post Grid as high severity with CVSS 8.8. The affected range is Versions before 2.1.13. Update Post Grid to 2.1.13 or newer where that version is compatible with the site.

Issue Type
SQL Injection
Primary Fixed Version
2.1.13
Primary Affected Range
Versions before 2.1.13
Tracking ID
CVE-2021-4450
Detailed Metadata
Software Type Plugin
Software Slug
CVE CVE-2021-4450
Patched Versions
2.1.13
Affected Versions
Versions before 2.1.13
Related CVE Cluster

Related CVEs for Post Grid

These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.

Critical CVE-2024-9636 2.3.4 Jan 14, 2025
CVE-2024-9636 Post Grid Privilege Escalation

Post Grid and Gutenberg Blocks 2.2.85 - 2.3.3 - Unauthenticated Privilege Escalation

High CVE-2025-54007 2.3.12 Aug 06, 2025
CVE-2025-54007 Post Grid Vulnerability

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

High CVE-2024-8253 2.2.91 Sep 10, 2024
CVE-2024-8253 Post Grid Privilege Escalation

Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation

High CVE-2023-7072 2.2.69 Mar 12, 2024
CVE-2023-7072 Post Grid Sensitive Information Exposure

Post Grid Combo – 36+ Gutenberg Blocks <= 2.2.68 - Information Exposure via get_posts API Endpoint

High CVE-2023-40211 2.2.51 Aug 11, 2023
CVE-2023-40211 Post Grid Sensitive Information Exposure

Post Grid <= 2.2.50 - Missing Authorization to Sensitive Information Exposure via REST API

Medium CVE-2025-68605 No patch listed Dec 21, 2025
CVE-2025-68605 Post Grid Stored Cross-Site Scripting

Post Grid and Gutenberg Blocks <= 2.3.21 - Authenticated (Contributor+) Stored Cross-Site Scripting

Medium CVE-2024-9645 2.2.93 Jan 14, 2025
CVE-2024-9645 Post Grid Stored Cross-Site Scripting

Post Grid and Gutenberg Blocks <= 2.2.92 - Authenticated (Contributor+) Stored Cross-Site Scripting

Medium CVE-2024-50432 2.2.94 Oct 24, 2024
CVE-2024-50432 Post Grid Stored Cross-Site Scripting

Post Grid and Gutenberg Blocks <= 2.2.93 - Authenticated (Contributor+) Stored Cross-Site Scripting

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