CVE-2026-12400: CWE-639 Authorization Bypass Through User-Controlled Key in priyanshuchaudhary FlowForms – Conversational Form Builder
The FlowForms – Conversational Form Builder WordPress plugin up to version 1.1.1 contains an authorization bypass vulnerability due to missing validation on a user-controlled key in the update_form REST endpoint. Authenticated users with contributor-level access or higher can modify, publish, or revert any form on the site by specifying arbitrary form IDs, including those owned by administrators. This vulnerability is classified as an Insecure Direct Object Reference (CWE-639).
AI Analysis
Technical Summary
CVE-2026-12400 describes an authorization bypass vulnerability in the FlowForms – Conversational Form Builder plugin for WordPress. The issue arises from insufficient validation of a user-controlled key in the update_form REST API endpoint, allowing authenticated users with contributor-level privileges or above to manipulate any form on the site by supplying arbitrary form IDs. This includes modifying content, design, settings, and publishing or reverting forms owned by other users, including administrators. The vulnerability affects all versions up to and including 1.1.1. No official patch or remediation guidance is currently available.
Potential Impact
The vulnerability allows authenticated users with contributor-level access or higher to bypass authorization controls and modify any form on the WordPress site, including those owned by administrators. This can lead to unauthorized changes in form content, design, settings, and the ability to publish or revert forms, potentially impacting site functionality and trustworthiness. There is no indication of confidentiality or availability impact. The CVSS score is 4.3 (medium severity).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access and above to trusted users only. Monitor for updates from the plugin vendor or WordPress security advisories for an official fix.
CVE-2026-12400: CWE-639 Authorization Bypass Through User-Controlled Key in priyanshuchaudhary FlowForms – Conversational Form Builder
Description
The FlowForms – Conversational Form Builder WordPress plugin up to version 1.1.1 contains an authorization bypass vulnerability due to missing validation on a user-controlled key in the update_form REST endpoint. Authenticated users with contributor-level access or higher can modify, publish, or revert any form on the site by specifying arbitrary form IDs, including those owned by administrators. This vulnerability is classified as an Insecure Direct Object Reference (CWE-639).
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-12400 describes an authorization bypass vulnerability in the FlowForms – Conversational Form Builder plugin for WordPress. The issue arises from insufficient validation of a user-controlled key in the update_form REST API endpoint, allowing authenticated users with contributor-level privileges or above to manipulate any form on the site by supplying arbitrary form IDs. This includes modifying content, design, settings, and publishing or reverting forms owned by other users, including administrators. The vulnerability affects all versions up to and including 1.1.1. No official patch or remediation guidance is currently available.
Potential Impact
The vulnerability allows authenticated users with contributor-level access or higher to bypass authorization controls and modify any form on the WordPress site, including those owned by administrators. This can lead to unauthorized changes in form content, design, settings, and the ability to publish or revert forms, potentially impacting site functionality and trustworthiness. There is no indication of confidentiality or availability impact. The CVSS score is 4.3 (medium severity).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict contributor-level access and above to trusted users only. Monitor for updates from the plugin vendor or WordPress security advisories for an official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-06-16T13:34:11.451Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50b54868715ace4351b344
Added to database: 07/10/2026, 09:03:04 UTC
Last enriched: 07/10/2026, 09:18:32 UTC
Last updated: 07/10/2026, 19:47:30 UTC
Views: 6
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