| #1 | Block for Mailchimp – grow your email list with signup forms | 100 | | 1 | 2k+ | | | Non-prefixed class |
| #2 | Send Images to RSS | 98 | 3 | 4 | 3k+ | | | Non-prefixed hook name |
| #3 | Gutena Newsletter – Subscriber Block & Connect Mailchimp | 97 | 18 | 3 | 1k+ | | | Text Domain Mismatch |
| #4 | RSS Featured Image | 96 | 4 | 2 | 2k+ | | | Missing direct file access protection |
| #5 | Lucky Wheel Giveaway | 96 | 3 | 27 | 500 | | | Non-prefixed constant |
| #6 | MB ImageChimp RSS Feed Enhancer | 92 | 6 | 0 | 700 | | | wp function not compatible with requires wp |
| #7 | MC4WP: WPML Integration | 91 | 7 | 9 | 2k+ | | | Missing direct file access protection |
| #8 | MC4WP: Mailchimp Top Bar – Email Subscribe Notification Bar | 88 | 1 | 21 | 6k+ | | | Non-prefixed global variable |
| #9 | Mailchimp List Subscribe Form | 86 | 22 | 156 | 60k+ | | | Non-prefixed global variable |
| #10 | HT Newsletter for Elementor | 86 | 53 | 3 | 700 | | | Text Domain Mismatch |
| #11 | Genesis eNews Extended | 82 | 9 | 1 | 40k+ | | | Output is not escaped |
| #12 | Connect Contact Form 7 to Mailchimp, Brevo, MailerLite & Klaviyo | 74 | 579 | 84 | 40k+ | | | Text Domain Mismatch |
| #13 | Another Mailchimp Widget | 71 | 28 | 17 | 4k+ | | | Missing Translators Comment |
| #14 | GDPR Compliance for Mailchimp | 69 | 7 | 15 | 2k+ | | | Missing nonce verification |
| #15 | Mailchimp Widget by ProteusThemes | 66 | 17 | 9 | 1k+ | | | Output is not escaped |
| #16 | Newspack Newsletters | 62 | 53 | 45 | 1k+ | | | Request data is not unslashed |
| #17 | MC4WP: Mailchimp for WordPress | 57 | 1 | 238 | 1m+ | | | Non-prefixed global variable |
| #18 | Easy GDPR Consent Forms – MailChimp | 57 | 72 | 22 | 500 | | | Text Domain Mismatch |
| #19 | Send Emails with Mandrill | 50 | 36 | 141 | 6k+ | | | Non-prefixed global variable |
| #20 | Convertful – Your Ultimate On-Site Conversion Tool | 48 | 15 | 34 | 3k+ | | | wp function not compatible with requires wp |
| #21 | Simple Membership MailChimp Integration | 45 | 34 | 27 | 900 | | | curl curl setopt |
| #22 | Lucky Wheel for WooCommerce – Spin a Sale | 39 | 12 | 153 | 1k+ | | | Request data is not unslashed |
| #23 | MailChimp Add-On for FormCraft | 39 | 56 | 29 | 800 | | | curl curl setopt |
| #24 | Quform Mailchimp | 39 | 65 | 147 | 800 | | | Nonce verification recommended |
| #25 | WP WooCommerce Mailchimp | 37 | 62 | 85 | 5k+ | | | Non-prefixed hook name |
| #26 | Email Subscription Popup — Newsletter & GDPR Consent | 35 | 683 | 193 | 1k+ | | | Output is not escaped |
| #27 | Mailmunch Forms for Mailchimp | 34 | 120 | 53 | 10k+ | | | Output is not escaped |
| #28 | Download After Email – Subscribe & Download Form Plugin | 34 | 22 | 356 | 7k+ | | | Input is not validated |
| #29 | Forms for Mailchimp by Optin Cat – Grow Your MailChimp List | 33 | 71 | 133 | 2k+ | | | Missing direct file access protection |
| #30 | Contact Form 7 Connector | 30 | 324 | 196 | 5k+ | | | Text Domain Mismatch |
| #31 | Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms | 28 | 649 | 357 | 9k+ | | | Text Domain Mismatch |
| #32 | Redirection for Contact Form 7 | 27 | 34 | 374 | 200k+ | | | Non-prefixed global variable |
| #33 | Icegram Collect – Easy Form, Lead Collection and Subscription plugin | 26 | 423 | 292 | 2k+ | | | Output is not escaped |
| #34 | FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) | 26 | 594 | 417 | 2k+ | | | Exception output is not escaped |
| #35 | RSS Chimp – Add Featured Images to WP RSS Feeds (Mailchimp, Google News, Feedly) | 25 | 622 | 1,310 | 400 | | | Non-prefixed global variable |
| #36 | Mailchimp for WooCommerce | 24 | 523 | 663 | 200k+ | | | Non-prefixed global variable |
| #37 | Featured Images in RSS for Mailchimp & More | 23 | 780 | 1,299 | 20k+ | | | Non-prefixed global variable |
| #38 | MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc. | 22 | 2,625 | 2,458 | 10k+ | | | Output is not escaped |
