CVE-2020-18662: Sir Gnuboard

Critical severity, CVSS 9.8. EPSS: 5.4% chance of exploitation in the next 30 days.

SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.

Affected products

• Sir Gnuboard: up to and including 5.3.2.8

Published 2021-06-24. Last modified 2026-06-17.