Pydio Cells 2.0.4 allows an authenticated user to write or overwrite existing files in another user’s personal and cells folders (repositories) by uploading a custom generated ZIP file and leveraging the file extraction feature present in the web application. The extracted files will be placed in the targeted user folders.

Pydio Cells 2.0.4 web application offers an administrative console named “Cells Console” that is available to users with an administrator role. This console provides an administrator user with the possibility of changing several settings, including the application’s mailer configuration. It is possible to configure a few engines to be used by the mailer application to send emails. If the user selects the “sendmail” option as the default one, the web application offers to edit the full path where the sendmail binary is hosted. Since there is no restriction in place while editing this value, an attacker authenticated as an administrator user could force the web application into executing any arbitrary binary.

Pydio Cells 2.0.4 allows XSS. A malicious user can either upload or create a new file that contains potentially malicious HTML and JavaScript code to personal folders or accessible cells.

A problem was found in Pydio Core before 8.2.4 and Pydio Enterprise before 8.2.4. A PHP object injection is present in the page plugins/core.access/src/RecycleBinManager.php. An authenticated user with basic privileges can inject objects and achieve remote code execution.

A problem was found in Pydio Core before 8.2.4 and Pydio Enterprise before 8.2.4. A PHP object injection is present in the page plugins/uploader.http/HttpDownload.php. An authenticated user with basic privileges can inject objects and achieve remote code execution.

Ajaxeplorer before 5.0.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) archive_name parameter to the Power FS module (plugins/action.powerfs/class.PowerFSController.php), a (2) file name to the getTrustSizeOnFileSystem function in the File System (Standard) module (plugins/access.fs/class.fsAccessWrapper.php), or the (3) revision parameter to the Subversion Repository module (plugins/meta.svn/class.SvnManager.php).

Pydio 6.0.8 allows Authenticated SSRF during a Remote Link Feature download. An attacker can specify an intranet address in the file parameter to index.php, when sending a file to a remote server, as demonstrated by the file=http%3A%2F%2F192.168.1.2 substring.

Pydio 6.0.8 mishandles error reporting when a directory allows unauthenticated uploads, and the remote-upload option is used with the http://localhost:22 URL. The attacker can obtain sensitive information such as the name of the user who created that directory and other internal server information.

Pydio Cells before 1.5.0 fails to neutralize '../' elements, allowing an attacker with minimum privilege to Upload files to, and Delete files/folders from, an unprivileged directory, leading to Privilege escalation.

Pydio Cells before 1.5.0 does incomplete cleanup of a user's data upon deletion. This allows a new user, holding the same User ID as a deleted user, to restore the deleted user's data.