WordPress security by component

MailerLite – Signup forms (official)

Plugin description

MailerLite – Signup forms (official) adds MailerLite signup forms and subscriber collection tools to WordPress websites.

MailerLite – Signup forms (official) (official-mailerlite-sign-up-forms) is a WordPress plugin with 6 published CVE records in this archive. The latest tracked vulnerability was published Sep 24, 2026; the highest published CVSS base score is 6.4.

Plugin slug: official-mailerlite-sign-up-forms

Latest vulnerability

CVE-2026-3253: MailerLite lets Contributors create and delete signup forms

A Contributor or higher can invoke AdminController::forms() without the required capability check, creating or deleting arbitrary signup forms. The request route and form-selector parameters are unspecified. Affected versions: <= 1.7.21.

PublishedSep 24, 2026

Safe version guidanceSee mitigation notes

Published vulnerabilities for official-mailerlite-sign-up-forms
		Safe version
Sep 24, 2026	CVE-2026-3253 MailerLite lets Contributors create and delete signup forms A Contributor or higher can invoke AdminController::forms() without the required capability check, creating or deleting arbitrary signup forms. The request route and form-selector parameters are unspecified. Affected versions: <= 1.7.21.	See mitigation notes	CVE4.3
Feb 19, 2026	CVE-2026-25420 MailerLite: A security weakness MailerLite is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.	See mitigation notes	CVE4.3
Dec 12, 2025	CVE-2025-13993 MailerLite – Signup forms (official): Cross-site scripting MailerLite – Signup forms (official) is affected by cross-site scripting. Exploitation requires an authenticated administrator account. Injected script can execute in the affected site's origin when the vulnerable output is viewed.	See mitigation notes	CVE5.5
May 02, 2024	CVE-2024-2797 MailerLite – Signup forms (official): A security weakness MailerLite – Signup forms (official) is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation.	See mitigation notes	CVE5.3
May 02, 2024	CVE-2024-1386 MailerLite – Signup forms (official): Cross-site scripting MailerLite – Signup forms (official) is affected by cross-site scripting. Exploitation requires an authenticated contributor account. Injected script can execute in the affected site's origin when the vulnerable output is viewed.	See mitigation notes	CVE6.4
Aug 05, 2022	CVE-2022-33201 Official Mailerlite Sign Up Forms: Cross-site request forgery Official Mailerlite Sign Up Forms is affected by cross-site request forgery. Exposure depends on how the affected operation is made reachable by the site. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request.	See mitigation notes	CVE6.3

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