CVE-2026-12400

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.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-10 | Updated 2026-07-14 | Assigner Wordfence

Problem types

CWE-639 Authorization Bypass Through User-Controlled Key

Product status

Timeline

Credits

Aliyan Khan finder

References

www.wordfence.com/...-f833-4da2-af4a-e7e7fcedfe3c?source=cve

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/....1/includes/class-rest-api.php

plugins.trac.wordpress.org/...wforms&new=3577870%40flowforms

cve.org (CVE-2026-12400)

nvd.nist.gov (CVE-2026-12400)

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