CVE-2020-10557

An issue was discovered in AContent through 1.4. It allows the user to run commands on the server with a low-privileged account. The upload section in the file manager page contains an arbitrary file upload vulnerability via upload.php. The extension .php7 bypasses file upload restrictions.

Recent assessments:

cinzinga at March 16, 2020 7:53pm UTC reported:

I am the author of this exploit. The web application (from 2018) does not list .php7 and .phtml as illegal file extensions. Additionally, the web app has open registration so that anyone with an email can sign up. This allows for virtually anyone to obtain remote code execution on the server by uploading a malicious web shell.

Currently on the internet there are 2 live websites running this software.

POC is available on my GitHub: <https://github.com/cinzinga/CVEs/tree/master/CVE-2020-10557&gt;

Assessed Attacker Value: 3
Assessed Attacker Value: 3Assessed Attacker Value: 5