MailerLite – Signup forms (official)

75 Quality Score

Active Installs

23/30

With 100,000 active installs the plugin has solid reach, but it sits an order of magnitude behind leading alternatives like Mailchimp for WordPress and MailPoet, which both exceed 500,000 installs.

Update Freshness

25/25

A last update on 2026-06-26 and tested against WordPress 6.8.5 indicates the developer is actively shipping compatible releases rather than letting the plugin stagnate.

User Rating

9/15

A score of 60 out of 100 drawn from only 40 reviews is a thin sample that leans mediocre, so treat user sentiment as a mild warning rather than a verdict.

Support Health

8/15

With 3 support threads and 0 resolved on record, public support activity is essentially nonexistent, which is concerning even if most users never need to file a ticket.

WP Compatibility

11/15

Requiring WordPress 3.0.1 and PHP 7.2.5 gives the plugin extremely wide compatibility, and the recent tested-against version confirms it still runs cleanly on modern stacks.

Scores higher than 40% of indexed plugins

About

Add newsletter signup forms to your WordPress site. Subscribers will be saved directly to your MailerLite account. Super easy to set up!

Active Installs 100k+

Rating ★★★ 3/5

Last Updated 2026-06-26 10:23am GMT

Requires WordPress 3.0.1+

Tested Up To 6.8.8

Requires PHP 7.2.5+

Security History

9 known vulnerabilities, all patched

1 Critical 1 High 7 Medium

Most recent: September 23, 2026

View details ▸

MailerLite – Signup forms (official) <= 1.7.21 - Missing Authorization to Authenticated (Contributor+) Form Creation and Deletion Medium

September 23, 2026 Patched in ["1.7.22"] CVE-2026-3253

MailerLite – Signup forms (official) <= 1.7.18 - Missing Authorization Medium

January 28, 2026 Patched in ["1.7.19"] CVE-2026-25420

MailerLite – Signup forms (official) <= 1.7.16 - Authenticated (Administrator+) Stored Cross-Site Scripting Medium

December 11, 2025 Patched in ["1.7.17"] CVE-2025-13993

MailerLite – Signup forms (official) 1.5.0 - 1.7.6 - Authenticated (Contributor+) Stored Cross-Site Scripting Medium

April 29, 2024 Patched in ["1.7.7"] CVE-2024-1386

MailerLite – Signup forms (official) <= 1.7.6 - Missing Authorization Medium

April 29, 2024 Patched in ["1.7.7"] CVE-2024-2797

MailerLite – Signup forms (official) <= 1.5.7 - Cross-Site Request Forgery High

August 1, 2022 Patched in ["1.5.8"] CVE-2022-33201

MailerLite - Signup forms <= 1.5.3 - Reflected Cross-Site Scripting Medium

May 18, 2022 Patched in ["1.5.4"] CVE-2022-1604

MailerLite Signup Forms < 1.4.4 - Unauthenticated SQL Injection Critical

May 22, 2020 Patched in ["1.4.4"]

MailerLite – Signup forms <= 1.4.4 - Cross-Site Request Forgery Medium

May 22, 2020 Patched in ["1.4.5"]

What It Does

MailerLite's official WordPress plugin connects your site to your MailerLite account so that newsletter signups collected through embedded forms, popups, or inline shortcodes flow directly into your MailerLite subscriber list. Configuration is intentionally minimal: paste your account API key, pick which form to render, and drop it onto a page, widget, or block. It does not handle email sending, automation, or list management from within WordPress; all of that stays inside MailerLite's own dashboard.

Who It's For

This plugin is a strong fit for bloggers, creators, and small businesses who already use MailerLite as their email service provider and want a frictionless way to capture WordPress subscribers without touching third-party form builders. It also suits anyone running a single, simple list and who values a lightweight widget over a full marketing suite inside the admin.

Who Should Skip It

If you are not already on MailerLite, or if you need built-in email sending, segmentation, or automations directly from WordPress, you should skip this and pick a more self-contained solution such as MailPoet or Newsletter. Developers expecting deep hooks, custom field syncing, or REST API integration will also find it underpowered.

The Bottom Line

MailerLite's official plugin does one thing, sending form submissions into MailerLite, and it does it with a recent update and a sensible dependency footprint. The unresolved support threads and modest user rating keep it from the top tier, so it earns a 75.14 quality score: a sensible, lightweight choice for existing MailerLite customers, but not the strongest pick if you need heavier form features or are undecided on your email provider.

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