Fat Free Framework · Fat-Free Framework · CVE-2020-5203
**Name of the Vulnerable Software and Affected Versions**
Fat-Free Framework version 3.7.1
**Description**
The issue allows attackers to achieve arbitrary code execution if developers pass user-controlled input, such as `$ REQUEST`, `$ GET`, or `$ POST`, to the framework's Clear method. This can lead to exploitation when user input is not properly sanitized.
**Recommendations**
For Fat-Free Framework version 3.7.1, avoid passing user-controlled input to the Clear method until a patch is available. As a temporary workaround, consider validating and sanitizing all user input before passing it to the framework's methods to minimize the risk of exploitation.