How severe is CVE-2025-11975?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Fusewp – Wordpress User Sync To Email List & Marketing Automation (Mailchimp, Constant Contact, Activecampaign Etc.)

CVE-2025-11975

The FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_…

Vulnerability class: Broken Access Control

EPSS: 0.002 (9.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Fusewp – Wordpress User Sync To Email List & Marketing Automation (Mailchimp, Constant Contact, Activecampaign Etc.) — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2025-11975?: CVE-2025-11975 is a medium-severity vulnerability in Fusewp – Wordpress User Sync To Email List & Marketing Automation (Mailchimp, Constant Contact, Activecampaign Etc.), classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-10-31.
How severe is CVE-2025-11975?: Medium severity. CVSS v3 base score is 4.3 out of 10.