Vulnerability in JetFormBuilder — Dynamic Blocks Form Builder — CVE-2026-12793
CriticalSeverity
0.4%Estimated exploit probability
80,000+ sitesInstalls
3.6.2.1Fixed in
What to do now
Update JetFormBuilder — Dynamic Blocks Form Builder to 3.6.2.1 or later.
Affected versions
- Everything up to and including 3.6.2
Affected: JetFormBuilder — Dynamic Blocks Form Builder (plugin, jetformbuilder)
What the vulnerability is
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.