CVE-2022-33201 MEDIUM

CVE-2022-33201: WordPress MailerLite – Signup forms (official) plugin <= 1.5.7 - Cross-Site Request Forgery (CSRF) vulnerability

Vendor Mailerlite
Product MailerLite (WordPress plugin)
Weakness CWE-352 · CSRF
Published August 5, 2022
Last update April 28, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in MailerLite – Signup forms (official) plugin <= 1.5.7 at WordPress allows an attacker to change the API key.

Explanation of Vulnerability in Simple Terms

02Summary

The MailerLite WordPress plugin version 1.5.7 and earlier is vulnerable to cross-site request forgery (CSRF). An attacker can trick a logged-in site administrator into performing unwanted actions, such as changing plugin settings or modifying email campaigns. The vulnerability requires the admin to visit a malicious webpage while authenticated to the WordPress site.

What an attacker can do

03Attacker Capabilities

Trick an authenticated admin into performing unwanted actions on the site via a malicious webpage.

Potential impact on your site

04Site Impact

An attacker could modify MailerLite plugin settings or email campaigns without your knowledge if you click a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Admin must be logged into WordPress and visit an attacker-controlled page while authenticated.

Key dates

06Disclosure timeline

August 5, 2022 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE