Auth bypass in Mailmunch Forms For Mailchimp
CVE-2026-7520
The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `sign_in()` and `sign_up()` AJAX handlers in all versions up to, and including, 3.2.7. This m…
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Mailmunch Forms For Mailchimp — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-7520?
- CVE-2026-7520 is a high-severity vulnerability in Mailmunch Forms For Mailchimp, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-08-05.
- How severe is CVE-2026-7520?
- High severity. CVSS v3 base score is 8.1 out of 10.