BackWPup 5.2.2 - 5.7.4 - BackWPup Jobs Checker+ Database Backup Exfiltration via Missing Authorization on Job REST Routes

The BackWPup WordPress plugin before 5.7.5 does not properly restrict access to several of its REST API routes for job, backup-destination, and backup-execution management, allowing users holding a BackWPup WordPress plugin before 5.7.5-defined, administrator-assigned limited role to create and run backup jobs and exfiltrate a full database backup to an attacker-controlled destination.

BackWPup <= 5.5.0 - Missing Authorization to Sensitive Information Exposure

The BackWPup – WordPress Backup & Restore Plugin plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'backwpup_working' AJAX action in all versions up to, and including, 5.5.0. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve access to a back-up's filename while a backup is running. This information has little value on it's own, but could be used to aid in a brute force attack to retrieve back-up contents in limited environments (i.e. NGINX).

PHP remote file inclusion vulnerability in wp_xml_export.php in the BackWPup plugin before 1.7.2 for WordPress allows remote attackers to execute arbitrary PHP code via a URL in the wpabs parameter.

Multiple directory traversal vulnerabilities in the BackWPup plugin before 1.4.1 for WordPress allow remote attackers to read arbitrary files via a .. (dot dot) in the wpabs parameter to (1) app/options-view_log-iframe.php or (2) app/options-runnow-iframe.php.