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

What is CVE-2021-4450?

CVE-2021-4450 is a high-severity SQL injection vulnerability in pickplugins Post Grid, published on 16 Oct 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-89

Which versions are affected by CVE-2021-4450?

It affects 1 product.

Products include Pickplugins Post Grid.

How do I fix CVE-2021-4450?

No fix has been published for CVE-2021-4450 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2021-4450 being exploited?

There is no known exploitation of CVE-2021-4450 in the wild and no public exploit code.

Other vulnerabilities in pickplugins Post Grid

• CVE-2024-8253 Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation High 8.8
• CVE-2024-13408 Path traversal in Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget High 7.5
• CVE-2020-35936 Cross-site scripting in n/a High 7.5
• CVE-2020-35937 Cross-site scripting in n/a High 7.5
• CVE-2020-35938 Deserialization in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w36w-mmqg-xf3r.