CVE-2025-10735

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.

CVSS 3.1

4.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 23% of CVEs (scores of 2026-10-25)

CWE

CWE-918

Published

2025-10-01

Modified

2026-10-09

Record from

the NVD, synced 2026-10-19

References

• https://plugins.svn.wordpress.org/block-for-mailchimp/tags/1.1.9/mailchimp/API.php
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3368808%40block-for-mailchimp&new=3368808%40block-for-mailchimp&sfp_email=&sfph_mail=
• https://wordpress.org/plugins/block-for-mailchimp/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/51de575f-d458-4a7d-bc57-4a11e5124377?source=cve

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