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.

Server-Side Request Forgery (SSRF) vulnerability in Montonio Montonio for WooCommerce, Wpopal Wpopal Core Features, AMO for WP – Membership Management ArcStone wp-amo, Long Watch Studio WooVirtualWallet – A virtual wallet for WooCommerce, Long Watch Studio WooVIP – Membership plugin for WordPress and WooCommerce, Long Watch Studio WooSupply – Suppliers, Supply Orders and Stock Management, Squidesma Theme Minifier, Paul Clark Styles styles, Designmodo Inc. WordPress Page Builder – Qards, Philip M. Hofer (Frumph) PHPFreeChat, Arun Basil Lal Custom Login Admin Front-end CSS, Team Agence-Press CSS Adder By Agence-Press, Unihost Confirm Data, deano1987 AMP Toolbox amp-toolbox, Arun Basil Lal Admin CSS MU.This issue affects Montonio for WooCommerce: from n/a through 6.0.1; Wpopal Core Features: from n/a through 1.5.8; ArcStone: from n/a through 4.6.6; WooVirtualWallet – A virtual wallet for WooCommerce: from n/a through 2.2.1; WooVIP – Membership plugin for WordPress and WooCommerce: from n…

The Membership For WooCommerce WordPress plugin before 2.1.7 does not validate uploaded files, which could allow unauthenticated users to upload arbitrary files, such as malicious PHP code, and achieve RCE.