Contact Form 7 Mailchimp Extension Vulnerabilities

The Connect Contact Form 7 and Mailchimp plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Mailchimp Merge Field Values in all versions up to, and including, 0.9.78.06 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary...

CVSS:

7.2

Affected:

up to 0.9.78.06

Fixed in:

0.9.78.07

Disclosed:

Jul 8, 2026

CVE-2026-15000 on NVD →

The Connect Contact Form 7 and Mailchimp plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.9.54. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive user or configuration data.

CVSS:

4.3

Affected:

up to 0.9.54

Fixed in:

0.9.69

Disclosed:

Dec 21, 2025

CVE-2025-68989 on NVD →

The Contact Form 7 Extension For Mailchimp plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5.73. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted the...

CVSS:

4.3

Affected:

up to 0.5.73

Fixed in:

0.9.19

Disclosed:

Apr 26, 2024

CVE-2024-33677 on NVD →

The Contact Form 7 Extension For Mailchimp plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 0.5.70. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web appl...

CVSS:

5.4

Affected:

up to 0.5.70

Fixed in:

0.9.19

Disclosed:

Jan 8, 2024

CVE-2024-22134 on NVD →