CVE-2025-12172 Mailchimp List Subscribe Form <= 2.0.0 - Cross-Site Request Forgery to Mailchimp List Change
Unauthenticated attackers can trick administrators into changing Mailchimp lists via forged requests due to missing nonce validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-12172?
CVE-2025-12172 is a medium-severity vulnerability in Mailchimp List Subscribe Form, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Mailchimp List Subscribe Form plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.0. This is due to missing or incorrect nonce validation on the mailchimp_sf_change_list_if_necessary() function. This makes it possible for unauthenticated attackers to change Mailchimp lists via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Weakness: CWE-352
Which versions are affected by CVE-2025-12172?
How do I fix CVE-2025-12172?
No fix has been published for CVE-2025-12172 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-12172 being exploited?
There is no known exploitation of CVE-2025-12172 in the wild and no public exploit code.
Sources
Also known as GHSA-m8v5-px35-v2vx.