Auth bypass in Priyanshuchaudhary Flowforms – Conversational Form Builder
CVE-2026-12400
The 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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.003 (19.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2026-12400?
- CVE-2026-12400 is a medium-severity vulnerability in Priyanshuchaudhary Flowforms – Conversational Form Builder, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-07-10.
- How severe is CVE-2026-12400?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2026-12400 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.