CVE-2026-86834
LOW
CVSS 3.7
Published: 2026-10-03
Modified: 2026-10-03
Tenable Plugin
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Threat Intelligence Pending
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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.
Quick Facts
| CVE ID | CVE-2026-86834 |
| CVSS Score | 3.7 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Published | 2026-10-03 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |