CVE-2021-24393: Comment Highlighter Project Comment Highlighter

High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days.

A c GET parameter of the Comment Highlighter WordPress plugin through 0.13 is not properly sanitised, escaped or validated before inserting to a SQL statement, leading to SQL injection.

Affected products

• Comment Highlighter Project Comment Highlighter: up to and including 0.13

Published 2021-09-06. Last modified 2026-06-17.