CVE-2021-46428: Simple Chatbot Application Project Simple Chatbot Application

Critical severity, CVSS 9.8. EPSS: 3.2% chance of exploitation in the next 30 days.

A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.

Affected products

• Simple Chatbot Application Project Simple Chatbot Application: version 1.0 only

Published 2022-01-27. Last modified 2026-06-17.