The WP STAGING WordPress Backup Plugin before 3.1.3 and WP STAGING Pro WordPress Backup Plugin before 5.1.3 do not prevent visitors from leaking key information about ongoing backups processes, allowing unauthenticated attackers to download said backups later.

The WP STAGING WordPress plugin before 2.9.18 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

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