| #1 | Lemon Squeezy — Sell Digital Products, Subscriptions, and Licenses | 99 | 1 | 5 | 500 | | | Non-prefixed constant |
| #2 | PayPlus Payment Gateway | 96 | | 87 | 1k+ | | | Non-prefixed class |
| #3 | Airwallex Online Payments Gateway | 95 | 2 | 2 | 4k+ | | | Nonce verification recommended |
| #4 | StoreEngine — Complete eCommerce Solution with Memberships, Licensing, Affiliates & More | 73 | 12 | 25 | 600 | | | Non-prefixed global variable |
| #5 | Recurio – Ultimate Subscription for WooCommerce | 67 | | 311 | 1k+ | | | Direct Query |
| #6 | Subscriptions for WooCommerce with Stripe Recurring Payments | 56 | 9 | 467 | 900 | | | Non-prefixed global variable |
| #7 | First payment date for WooCommerce Subscriptions | 42 | 42 | 19 | 400 | | | Output is not escaped |
| #8 | Mollie Forms | 41 | 14 | 565 | 3k+ | | | Request data is not unslashed |
| #9 | Paystack Add-On for Gravity Forms | 39 | 96 | 31 | 400 | | | Text Domain Mismatch |
| #10 | Subscriptions & Memberships for PayPal | 38 | 73 | 237 | 900 | | | Request data is not unslashed |
| #11 | Subscriptions for WooCommerce | 37 | 1 | 1,183 | 10k+ | | | Non-prefixed global variable |
| #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 | 259 | 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 | 351 | 336 | 1k+ | | | Text Domain Mismatch |
| #17 | Secure Gateway for Authorize.net and WooCommerce by Pledged Plugins | 25 | 907 | 1,418 | 10k+ | | | Non-prefixed global variable |
| #18 | FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler | 25 | 325 | 526 | 7k+ | | | Non-prefixed global variable |
| #19 | Pay with Vipps and MobilePay for WooCommerce | 25 | 851 | 516 | 5k+ | | | Output is not escaped |
| #20 | YITH WooCommerce Subscription | 24 | 439 | 1,538 | 7k+ | | | Non-prefixed global variable |
| #21 | Membership & User Roles for WooCommerce (Automatic Role Changer) | 24 | 599 | 1,313 | 400 | | | Non-prefixed global variable |
| #22 | Stripe Payment Forms by WP Full Pay – Accept Credit Card Payments, Donations & Subscriptions | 23 | 1,113 | 1,863 | 9k+ | | | Output is not escaped |
| #23 | SureCart – Ecommerce Made Easy For Selling Physical Products, Digital Downloads, Subscriptions, Donations, & Payments | 19 | 533 | 1,149 | 80k+ | | | Non-prefixed global variable |
