MailerLite – Signup forms (official)
official-mailerlite-sign-up-forms · plugin
Known security vulnerabilities for MailerLite – Signup forms (official). Find out in seconds which version runs on your site with WP Lens.
5 known vulnerabilities
2 exploitable without logging in · latest Feb 19, 2026
Listed on wordpress.org · latest 1.7.26 · last updated Jun 26, 2026 · 100K+ installs
wordpress.org status checked on Oct 2, 2026
Vulnerabilities
- High 8.8
CVE-2022-33201unauthenticated · needs a click≤ 1.5.7
WordPress MailerLite – Signup forms (official) plugin <= 1.5.7 - Cross-Site Request Forgery (CSRF) vulnerability
- Medium 6.4
CVE-2024-1386contributor+≤ 1.7.6
The MailerLite – Signup forms (official) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in
- Medium 5.5
CVE-2025-13993admin≤ 1.7.16
MailerLite – Signup forms (official) <= 1.7.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
- Medium 5.3
CVE-2024-2797unauthenticated≤ 1.7.6
MailerLite – Signup forms (official) <= 1.7.6 - Missing Authorization
- Medium 4.3
CVE-2026-25420login required≤ 1.7.18
WordPress MailerLite plugin <= 1.7.18 - Broken Access Control vulnerability
The access label is read from the record's own text (e.g. “subscriber+”: subscriber and above). When the text names no role, CVSS decides between “login required” and “high privilege”; no role name is invented. “Needs a click”: the attack depends on a logged-in user following a link (CSRF, reflected XSS).