What is CVE-2026-87071?

CVE-2026-87071 is a medium-severity vulnerability in Forminator Forms, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-09-23.

How severe is CVE-2026-87071?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Forminator Forms

CVE-2026-87071

The Forminator Forms WordPress plugin before 1.57.2.1 does not restrict which metadata keys a form submission may supply, and does not exclude the keys WordPress reserves for its own use, so unauthenticated visitors submitting a public form that collects post content can attach metadata of their choosing to the post their submission creates.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-09-23 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Forminator Forms

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

wpscan.com/vulnerability/9d831b9d-c05d-4b9a-8b65-7e1e35e68510/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-87071?: CVE-2026-87071 is a medium-severity vulnerability in Forminator Forms, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-09-23.
How severe is CVE-2026-87071?: Medium severity. CVSS v3 base score is 5.3 out of 10.