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CVE-2026-12400

4.3 · MEDIUM

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 val…

Published Jul 10, 2026CWE-639EPSS 0.37%

Overview

CVE-2026-12400 is a medium-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L48Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L493Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L562Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L603Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L654Refplugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php#L694Refplugins.trac.wordpress.org/changeset?reponame=&old=3577870%40flowforms&new=3577870%40flowformsRefwww.wordfence.com/threat-intel/vulnerabilities/id/7f4e6133-f833-4da2-af4a-e7e7fcedfe3c?source=cve

How CyberStrike helps

Frequently asked questions

What is CVE-2026-12400?

CVE-2026-12400 is a medium-severity vulnerability. It was published on July 10, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-12400?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-12400?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-12400?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-12400 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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