CVE-2026-86834 — MetForm 2.2.1 - 4.3.0 - Unauthenticated Debug File Disclosure via HubSpot Forms Integration

CVE-2026-86834

MetForm 2.2.1 - 4.3.0 - Unauthenticated Debug File Disclosure via HubSpot Forms Integration PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Unknown / MetForm	affected 2.2.1 before 4.3.1

CWE

No CWE identifiers supplied.

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.