What is CVE-2026-11880?

CVE-2026-11880 is a low-severity vulnerability in Fluent Forms, classified under CWE-639 AUTHORIZATION BYPASS THROUGH USER-CONTROLLED KEY. CVSS score: 3.1/10. Published 2026-07-01.

How severe is CVE-2026-11880?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Fluent Forms

CVE-2026-11880

The Fluent Forms WordPress plugin before 6.2.1 does not properly verify ownership before processing a subscription cancellation request, allowing authenticated users with a low-privilege account to cancel subscriptions belonging to other users.

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Unknown Fluent Forms — versions 0

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-11880?: CVE-2026-11880 is a low-severity vulnerability in Fluent Forms, classified under CWE-639 AUTHORIZATION BYPASS THROUGH USER-CONTROLLED KEY. CVSS score: 3.1/10. Published 2026-07-01.
How severe is CVE-2026-11880?: Low severity. CVSS v3 base score is 3.1 out of 10.