CVE-2020-12640
a vulnerability, which was classified as critical, was found in roundcube webmail up to 1.4.3 (Mail Client Software). Affected is an unknown functionality of the file rcube_plugin_api.php. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability.
Exploit
Although there is no exploit script available for the vulnerability online, there is a PoC available
Therefore, exploitation will be conducted manually