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TI-2025-11160 Aliases CVE-2025-12172GHSA-m8v5-px35-v2vx

Mailchimp List Subscribe Form <= 2.0.0 - Cross-Site Request Forgery to Mailchimp List Change

Priority LOW 19CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00161 5th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MailchimpMailchimp List Subscribe Formup to 2.0.0—No fix listedCNA
  • Mailchimp List Subscribe Form VendorMailchimp Affected up to 2.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-12172
  2. 2026-10-03 Alias added: GHSA-m8v5-px35-v2vx

References

Other 2

  • TI-2026-51466 WordPress MailChimp For WooCommerce plugin < 6.2 - SQL Injection vulnerability CVSS 3.1HIGH 7.6
  • TI-2014-05968 Cross-site scripting (XSS) vulnerability in the Easy MailChimp Forms plugin 3.0 through… CVSS 2.0MEDIUM 4.3
  • TI-2022-02092 MailChimp for Woocommerce < 2.7.1 - Subscriber+ SSRF CVSS 3.1MEDIUM 4.3
  • TI-2022-02361 MailChimp for Woocommerce < 2.7.2 - Admin+ SSRF CVSS 3.1LOW 2.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences