CVE-2017-5480

Name of the Vulnerable Software and Affected Versions b2evolution versions prior to 6.8.4

Description A directory traversal issue exists, allowing remote authenticated users to read or delete arbitrary files. This is achieved by providing a .. (dot dot) in the fm selected array parameter in the inc/files/files.ctrl.php file, leveraging back-office access.

Recommendations For versions prior to 6.8.4, update to version 6.8.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the back-office and limiting the use of the fm selected array parameter in the inc/files/files.ctrl.php file until a patch is available.