CVE-2005-0863: Phpopenchat

Medium severity, CVSS 4.3. EPSS: 1.7% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in PHPOpenChat v3.x allows remote attackers to inject arbitrary web script or HTML via (1) the chatter parameter to regulars.php or (2) the chatter, chatter1, chatter2, chatter3, or chatter4 parameters to register.php.

Affected products

• Phpopenchat Phpopenchat: version 3.0.0 only; version 3.0.1 only; version 3.0.2 only

Published 2005-05-02. Last modified 2026-06-16.