| #1 | Lemon Squeezy — Sell Digital Products, Subscriptions, and Licenses | 99 | 1 | 5 | 500 | | | Non-prefixed constant |
| #2 | PayPlus Payment Gateway | 96 | | 91 | 1k+ | | | Non-prefixed class |
| #3 | Airwallex Online Payments Gateway | 94 | 2 | 2 | 5k+ | | | Nonce verification recommended |
| #4 | Subscriptions for WooCommerce with Stripe Recurring Payments | 64 | | 528 | 1k+ | | | Non-prefixed global variable |
| #5 | StoreEngine — Complete eCommerce Solution with Memberships, Licensing, Affiliates & More | 62 | 13 | 47 | 600 | | | Database parameter is not escaped |
| #6 | Recurio – Ultimate Subscription for WooCommerce | 55 | 1 | 322 | 2k+ | | | Direct Query |
| #7 | First payment date for WooCommerce Subscriptions | 41 | 45 | 25 | 400 | | | Output is not escaped |
| #8 | Mollie Forms | 39 | 31 | 647 | 3k+ | | | Request data is not unslashed |
| #9 | Paystack Add-On for Gravity Forms | 39 | 96 | 31 | 400 | | | Text Domain Mismatch |
| #10 | Subscriptions for WooCommerce | 38 | | 1,180 | 10k+ | | | Non-prefixed global variable |
| #11 | Subscriptions & Memberships for PayPal | 38 | 73 | 237 | 900 | | | Request data is not unslashed |
| #12 | Quickpay for WooCommerce | 37 | 66 | 56 | 4k+ | | | Nonce verification recommended |
| #13 | EasyMe Connect | 37 | 130 | 45 | 500 | | | Text Domain Mismatch |
| #14 | Flexible Subscriptions | 34 | 46 | 267 | 1k+ | | | Non-prefixed global variable |
| #15 | Accept PayPal & Stripe with Subscriptions for WooCommerce | 30 | 105 | 209 | 3k+ | | | Exception output is not escaped |
| #16 | Memberful – Membership Plugin | 27 | 358 | 362 | 1k+ | | | Text Domain Mismatch |
| #17 | Membership & User Roles for WooCommerce (Automatic Role Changer) | 27 | 526 | 1,316 | 300 | | | Non-prefixed global variable |
| #18 | Secure Gateway for Authorize.net and WooCommerce by Pledged Plugins | 25 | 901 | 1,419 | 10k+ | | | Non-prefixed global variable |
| #19 | FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler | 25 | 326 | 575 | 8k+ | | | Non-prefixed global variable |
| #20 | Pay with Vipps and MobilePay for WooCommerce | 25 | 854 | 516 | 5k+ | | | Output is not escaped |
| #21 | YITH WooCommerce Subscription | 24 | 442 | 1,538 | 6k+ | | | Non-prefixed global variable |
| #22 | Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions | 23 | 1,112 | 1,875 | 8k+ | | | Output is not escaped |
| #23 | SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments | 19 | 541 | 1,146 | 80k+ | | | Non-prefixed global variable |
