The Freemius SDK, as used by hundreds of WordPress plugin and theme developers, was vulnerable to Cross-Site Request Forgery and Information disclosure due to missing capability checks and nonce protection on the _get_debug_log, _get_db_option, and the _set_db_option functions in versions up to, and including 2.4.2. Any WordPress plugin or theme running a version of Freemius less than 2.4.3 is vulnerable.

Improper Control of Generation of Code ('Code Injection') vulnerability in TienCOP WP EXtra.This issue affects WP EXtra: from n/a through 6.2.

Missing Authorization, Cross-Site Request Forgery (CSRF) vulnerability in TienCOP WP EXtra allows Accessing Functionality Not Properly Constrained by ACLs, Cross Site Request Forgery.This issue affects WP EXtra: from n/a through 6.2.

Cross-Site Request Forgery (CSRF) vulnerability in TienCOP WP EXtra plugin <= 6.4 versions.

The WP EXtra plugin for WordPress is vulnerable to unauthorized access to restricted functionality due to a missing capability check on the 'test-email' section of the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to send emails with arbitrary content to arbitrary locations from the affected site's mail server.

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution.

The WP Extra File Types WordPress plugin before 0.5.1 does not have CSRF check when saving its settings, nor sanitise and escape some of them, which could allow attackers to make a logged in admin change them and perform Cross-Site Scripting attacks