CVE-2026-19860 — MEDIUM (5.5)

Vulnerability 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.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-73

References

https://wpscan.com/vulnerability/d73d8d27-6dad-4a7f-bf51-f5fc18ebc81f/

FAQ

What is CVE-2026-19860?

CVE-2026-19860 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 bloc...

How severe is CVE-2026-19860?

CVE-2026-19860 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-19860?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.