Security
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CVE-2026-86834

LOWCVSS 3.7
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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.

Timeline
Published:October 3rd, 2026 6:16 AM
Last modified:October 3rd, 2026 4:16 PM
CVSS Scoring

CVSS v3: 3.7 (LOW)

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

Weaknesses (CWE)
CWE-200
References & Reports
Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute