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TI-2026-67432 Aliases CVE-2026-86834GHSA-cr6m-q4jq-r64m

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

Priority LOW 17CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00178 7th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed MetForm (Unknown): 4.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownMetForm2.2.1 to before 4.3.14.3.1Patch availableCNA
  • MetForm VendorUnknown Affected 2.2.1 to before 4.3.1 Fixed in 4.3.1 Patch available CNA

Remediation

  • Fix · CNA MetForm (Unknown) Fixed in 4.3.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    MetForm 4.3.1

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-67431 MetForm < 4.3.1 - Unauthenticated Form Entry Data Disclosure via REST APIPriority LOW 29
    Show all 2 records →

Timeline

  1. 2026-10-03 Threatist record created from CVE-2026-86834
  2. 2026-10-03 Alias added: GHSA-cr6m-q4jq-r64m
  3. 2026-10-03 CVSS score added · CISA ADP
  4. 2026-10-03 Weakness changed · CISA ADP
  5. 2026-10-03 CISA SSVC decision points changed

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences