CVE-2026-19861 — MEDIUM (4.7)

Vulnerability Description

The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not properly sanitise and escape a form field's value before including it in the HTML notification emails it sends, allowing unauthenticated users to inject arbitrary HTML into messages delivered to administrators and other recipients. Whether injected script executes depends on the recipient's mail client, but the injected markup is rendered regardless.

CVSS Score

4.7

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

https://wpscan.com/vulnerability/c9c834a3-dc65-4972-9315-d4dcc7f26599/

FAQ

What is CVE-2026-19861?

CVE-2026-19861 is a vulnerability with a CVSS score of 4.7 (MEDIUM). The JetFormBuilder — Dynamic Blocks Form Builder WordPress plugin before 3.6.5.2 does not properly sanitise and escape a form field's value before including it in the HTML notification emails it sends...

How severe is CVE-2026-19861?

CVE-2026-19861 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-19861?

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