CVE-2026-86834

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

Published Oct 3, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions metform
Vendors & Products Wordpress-extensions
Wordpress-extensions metform
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-200
Type Values Removed Values Added
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.
Title MetForm 2.2.1 - 4.3.0 - Unauthenticated Debug File Disclosure via HubSpot Forms Integration
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Oct 3, 2026, 3:12 PM
Reserved
Sep 8, 2026, 2:33 PM
Status
Deferred
Published
Oct 3, 2026, 6:16 AM
Modified
Oct 6, 2026, 3:18 PM