5.5
Medium
CVE-2026-19860 The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.3 does not sufficiently restrict which…
Description
The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.3 does not sufficiently restrict which PHP functions can be used as a custom field-validation callback, relying on a blocklist that omits a file-deletion function, allowing users able to manage forms to cause arbitrary files on the server to be deleted. The deletion itself is carried out when the form is submitted, which requires no authentication.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| JetFormBuilder — Dynamic Blocks Form Builder 3.5 | 3.5.6.2 → < 3.6.5.3 | 3.6.5.3 |