The InfiniteWP Client plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.13.0 via the 'historyID' parameter of the ~/debug-chart/index.php file. This makes it possible for unauthenticated attackers to read .txt files outside of the intended directory.

The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

The InfiniteWP Client plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.12.3 via the multi-call backup option. This makes it possible for unauthenticated attackers to extract sensitive data from a temporary SQL file via repeated GET requests during the limited time window of the backup process.

The InfiniteWP Client plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 1.11.1 via the 'admin_notice' function. This can allow authenticated attackers with subscriber-level permissions or above to extract sensitive data including configuration. It can only be exploited if the plugin has not been configured yet. If combined with another arbitrary plugin installation and activation vulnerability, it may be possible to connect a site to InfiniteWP which would make remote management possible and allow for elevation of privileges.

A vulnerability was found in InfiniteWP Client Plugin 1.5.1.3/1.6.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to injection. The attack can be launched remotely. Upgrading to version 1.6.1.1 is able to address this issue. It is recommended to upgrade the affected component.

The Backup and Staging by WP Time Capsule WordPress plugin before 1.22.7 does not sanitise and escape the error parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting

The InfiniteWP Client plugin before 1.9.4.5 for WordPress has a missing authorization check in iwp_mmb_set_request in init.php. Any attacker who knows the username of an administrator can log in.