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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.

PUBLISHED Reserved 2025-09-19 | Published 2025-10-01 | Updated 2025-10-01 | Assigner Wordfence




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

Problem types

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Default status
unaffected

*
affected

Timeline

2025-09-19:Vendor Notified
2025-09-30:Disclosed

Credits

D01EXPLOIT OFFICIAL finder

References

www.wordfence.com/...-d458-4a7d-bc57-4a11e5124377?source=cve

plugins.svn.wordpress.org/...mp/tags/1.1.9/mailchimp/API.php

wordpress.org/plugins/block-for-mailchimp/

plugins.trac.wordpress.org/...ailchimp&sfp_email=&sfph_mail=

cve.org (CVE-2025-10735)

nvd.nist.gov (CVE-2025-10735)

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