Comodo Dome Firewall Reflected Cross-Site Scripting Vulnerability

A reflected cross-site scripting vulnerability has been identified in Comodo Dome Firewall version 2.7.0. This vulnerability allows attackers to inject malicious scripts by sending unsanitized input to the EXCEPTIONSITELIST parameter. Exploitation involves crafting POST requests to the https_exceptions endpoint with script payloads, which are then executed as arbitrary JavaScript in the browsers of users, potentially leading to the theft of session data.

Impact

Exploitation of this vulnerability allows for reflected cross-site scripting, where injected scripts are executed in the context of the user's browser.

Reproduction

To reproduce this vulnerability, send a POST request to the https_exceptions endpoint with a script payload in the EXCEPTIONSITELIST parameter. The injected script will be executed in the user's browser, demonstrating the cross-site scripting vulnerability.