Auth bypass in Wpmudev Forminator Forms – Contact Form, Payment Form & Custom Builder
CVE-2026-12998
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.55.0.2 via the 'draft' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate sequential integer entry IDs via the 'draft' parameter and read other users' saved draft form data, including names, email addresses, phone numbers, addresses, and free-form message content. This is only exploitable on forms that have the 'Save and Continue' feature enabled.
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:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/36aa7193-0e31-4084-97d0-8c22e…
- plugins.trac.wordpress.org/browser/forminator/tags/1.55.0/library/render/class-…
- plugins.trac.wordpress.org/browser/forminator/tags/1.55.0/library/render/class-…
- plugins.trac.wordpress.org/browser/forminator/tags/1.55.0/library/model/class-f…
- plugins.trac.wordpress.org/browser/forminator/tags/1.55.0/library/model/class-f…
- plugins.trac.wordpress.org/browser/forminator/tags/1.52.2/library/render/class-…
- plugins.trac.wordpress.org/browser/forminator/tags/1.52.2/library/render/class-…
- plugins.trac.wordpress.org/browser/forminator/tags/1.52.2/library/model/class-f…
- plugins.trac.wordpress.org/browser/forminator/tags/1.52.2/library/model/class-f…
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-12998?
- CVE-2026-12998 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 2026-08-16.
- How severe is CVE-2026-12998?
- Medium severity. CVSS v3 base score is 5.3 out of 10.