CVE-2026-2729: CWE-639 Authorization Bypass Through User-Controlled Key in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
The Forminator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.52.0. This is due to the plugin not properly verifying that a user is authorized to perform an action when processing attacker-supplied Stripe PaymentIntent identifiers in the public payment flow. This makes it possible for unauthenticated attackers to submit high-value paid forms as completed by reusing a previously succeeded low-value Stripe PaymentIntent, resulting in underpayment/payment bypass conditions.
AI Analysis
Technical Summary
The Forminator WordPress plugin suffers from an authorization bypass vulnerability (CWE-639) due to improper verification of user authorization when handling Stripe PaymentIntent identifiers in the public payment flow. This allows unauthenticated attackers to submit paid forms as completed by reusing previously successful low-value PaymentIntents, resulting in underpayment or payment bypass. The vulnerability affects all versions up to 1.52.0. The CVSS 3.1 score is 5.3 (medium severity). No patch or official remediation guidance is currently available from the vendor, and no known exploits have been reported.
Potential Impact
An attacker can bypass payment requirements by submitting high-value paid forms as completed without actually paying the full amount, potentially causing financial loss to the site owner. The vulnerability does not impact confidentiality or availability but impacts integrity by allowing unauthorized form submissions with underpayment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor vendor communications for updates. No temporary or official fixes are currently documented. As this is not a cloud service, remediation depends on applying vendor patches when available.
CVE-2026-2729: CWE-639 Authorization Bypass Through User-Controlled Key in wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Description
The Forminator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.52.0. This is due to the plugin not properly verifying that a user is authorized to perform an action when processing attacker-supplied Stripe PaymentIntent identifiers in the public payment flow. This makes it possible for unauthenticated attackers to submit high-value paid forms as completed by reusing a previously succeeded low-value Stripe PaymentIntent, resulting in underpayment/payment bypass conditions.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Forminator WordPress plugin suffers from an authorization bypass vulnerability (CWE-639) due to improper verification of user authorization when handling Stripe PaymentIntent identifiers in the public payment flow. This allows unauthenticated attackers to submit paid forms as completed by reusing previously successful low-value PaymentIntents, resulting in underpayment or payment bypass. The vulnerability affects all versions up to 1.52.0. The CVSS 3.1 score is 5.3 (medium severity). No patch or official remediation guidance is currently available from the vendor, and no known exploits have been reported.
Potential Impact
An attacker can bypass payment requirements by submitting high-value paid forms as completed without actually paying the full amount, potentially causing financial loss to the site owner. The vulnerability does not impact confidentiality or availability but impacts integrity by allowing unauthorized form submissions with underpayment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor vendor communications for updates. No temporary or official fixes are currently documented. As this is not a cloud service, remediation depends on applying vendor patches when available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-02-19T02:39:56.765Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f996efcbff5d8610d19711
Added to database: 5/5/2026, 7:06:23 AM
Last enriched: 5/5/2026, 7:22:02 AM
Last updated: 5/6/2026, 3:54:36 AM
Views: 9
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