CVE-2023-1877: RCE by Server Side Template Injection in microweber

Valid

Description

Hi, During my testing, I discovered that it is possible to inject code into the system through the “first name” field.

This vulnerability allows for server-side template injection, which can lead to arbitrary code execution. The impact of this vulnerability is potentially significant and should be addressed as soon as possible.

I ran the {{system(‘id’)}} proving the code execution on the server.

Proof of Concept

Poc:

Impact

Remote code execution