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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-12400
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-10 09:16:52 UTC
Updated2026-07-14 02:16:52 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.002260000 probability, percentile 0.132150000 (date 2026-07-14)

Problem Types: CWE-639 | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Priyanshuchaudhary FlowForms Conversational Form Builder affected 1.1.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/7f4e6133-f833-4da2-af4a-e7e7f... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/flowforms/tags/1.1.1/includes/class-rest-api.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Aliyan Khan (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-09T19:17:45.000ZDisclosed

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