CVE-2021-3172: PHP-Fusion

High severity, CVSS 8.1. EPSS: 0.6% chance of exploitation in the next 30 days.

An issue in Php-Fusion v9.03.90 fixed in v9.10.00 allows authenticated attackers to cause a Distributed Denial of Service via the Polling feature.

Affected products

• PHP-Fusion PHP-Fusion: from 9.03.90, before 9.10.00 (fixed in 9.10.00)

Published 2023-02-17. Last modified 2026-06-17.