Exponent · Exponent Cms · CVE-2016-7791
**Name of the Vulnerable Software and Affected Versions**
Exponent CMS version 2.3.9
**Description**
The issue allows for remote code execution. An attacker can upload a malicious file, `exploit.tar.gz`, to the website and then extract it by visiting the "/install/index.php" endpoint with a specific query parameter, `install sample=../../files/exploit`, leading to arbitrary code execution.
**Recommendations**
For Exponent CMS version 2.3.9, as a temporary workaround, consider restricting access to the "/install/index.php" endpoint and avoid using the `install sample` parameter until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.