CVE-2021-4450 HIGH

CVE-2021-4450: Post Grid <= 2.1.12 - Contributor+ SQL Injection

Vendor Pickplugins
Product Post Grid
Weakness CWE-89 · SQLi
Published October 16, 2024
Last update April 8, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

October 16, 2024 CVE published
April 8, 2026 Record updated