Name of the Vulnerable Software and Affected Versions:
appRain CMF version 4.0.5
Description:
A stored authenticated cross-site scripting (XSS) issue exists due to insufficient validation of user-supplied data. The vulnerability is triggered through the `data[Addon][layouts]` and `data[Addon][layouts except]` parameters in the `/apprain/developer/addons/update/admin` API endpoint.
Recommendations:
Apply input validation and sanitization to the `data[Addon][layouts]` and `data[Addon][layouts except]` parameters in the `/apprain/developer/addons/update/admin` API endpoint.