Auth bypass in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder
CVE-2026-2729
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-2729?
- CVE-2026-2729 is a medium-severity vulnerability in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2026-05-05.
- How severe is CVE-2026-2729?
- Medium severity. CVSS v3 base score is 5.3 out of 10.