CVE-2026-12793
JetFormBuilder <= 3.6.2 - Unauthenticated Privilege Escalation via '_jet_engine_booking_form_id' Parameter
- Published
- Sep 16, 2026
- Updated
- Sep 17, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Sep 16, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 32.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.6.2. This is due to the plugin not validating that a submitted form ID belongs to a JetFormBuilder form before parsing the referenced post's content as form schema and executing an Advanced Validation server-side callback. This makes it possible for unauthenticated attackers to create a new administrator-level user account.
Sources
3Proof-of-concept exploit for CVE-2026-12793, an unauthenticated privilege escalation in WordPress JetFormBuilder up to 3.6.2 that creates administrator accounts.
Python PoC scanner and exploit for CVE-2026-12793, an unauthenticated privilege escalation in JetFormBuilder <=3.6.2 that creates WordPress admin accounts.
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