CVE-2025-10735 Block For Mailchimp – Easy Mailchimp Form Integration <= 1.1.12 - Unauthenticated Blind Server-Side Request Forgery
Unauthenticated attackers can exploit a blind SSRF vulnerability in the Block For Mailchimp plugin to query and modify internal services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-10735?
CVE-2025-10735 is a medium-severity server-side request forgery vulnerability in bplugins Block for Mailchimp – Add Email Subscription Forms and Collect Leads, published on 1 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Block For Mailchimp – Easy Mailchimp Form Integration plugin for WordPress is vulnerable to Blind Server-Side Request Forgery in all versions up to, and including, 1.1.12 via the mcbSubmit_Form_Data(). This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
Weakness: CWE-918
Which versions are affected by CVE-2025-10735?
How do I fix CVE-2025-10735?
No fix has been published for CVE-2025-10735 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2025-10735 being exploited?
There is no known exploitation of CVE-2025-10735 in the wild and no public exploit code.
Sources
Also known as GHSA-qxh8-5779-hg4r.