CVE-2026-86834 — LOW (3.7) — White Hats Nepal

Vulnerability Description

The MetForm WordPress plugin before 4.3.1 does not properly restrict access to a debug file it writes to the web root on every form submission when its HubSpot Forms integration is enabled, allowing unauthenticated attackers to read upstream API response data, including correlation identifiers and cookies.

CVSS Score

3.7

LOW

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-200

References

https://wpscan.com/vulnerability/a56b7e26-9070-4c38-bdc1-7289b5829638/

FAQ

What is CVE-2026-86834?

CVE-2026-86834 is a vulnerability with a CVSS score of 3.7 (LOW). The MetForm WordPress plugin before 4.3.1 does not properly restrict access to a debug file it writes to the web root on every form submission when its HubSpot Forms integration is enabled, allowing ...

How severe is CVE-2026-86834?

CVE-2026-86834 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-86834?

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