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.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (10.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-11880: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Fluent Forms — versions 0

References

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.