Medium 4.3Published Jul 10, 2026

CVE-2026-12400FlowForms <= 1.1.1 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Form Modification via REST API '/flowforms/v1/forms/{id}' Endpoints

Updated under an hour ago (Oct 28, 2026, 2:30 PM ET)

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It affects priyanshuchaudhary FlowForms – Conversational Form Builder. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for priyanshuchaudhary FlowForms – Conversational Form Builder

Exploited in the last 30 days

The FlowForms – Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.1 via the update_form due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to modify the content, design, and settings of, as well as publish or revert, any form on the site — including forms owned by administrators — by supplying an arbitrary form ID in the REST URL.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Jul 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

priyanshuchaudhary FlowForms – Conversational Form Builder priyanshuchaudhary:flowforms_conversational_form_builder (from the name)	through 1.1.1	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/7f4e6133-f833-4da2-af4a-e7e7fcedfe3c?source=cve
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L493
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L48
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L562
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L603
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L654
https://plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L694
https://plugins.trac.wordpress.org/changeset?reponame=&old=3577870%40flowforms&new=3577870%40flowforms

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.