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TI-2026-78569 Aliases CVE-2026-85642GHSA-4w7f-p9m2-jxgx

Formidable Forms rate limit lets attackers block payment verification

Priority LOW 39CWE-400Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.

Summary

The Formidable Forms WordPress plugin from 6.5 before 7.0 does not verify the caller's identity before recording the timestamp used to rate limit payment gateway verification requests (CWE-400). An unauthenticated remote attacker can use up the daily allowance, so legitimate verification attempts are refused for the next 24 hours. An exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The Formidable Forms WordPress plugin before 7.0 does not verify the identity of the caller before recording the timestamp it uses to rate limit payment gateway verification requests, allowing unauthenticated attackers to consume the daily allowance and cause legitimate verification attempts to be refused for the next 24 hours.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00392 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Formidable Forms (Unknown): 7.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
UnknownFormidable Forms6.5 to before 7.07.0Patch availableCNA
  • Formidable Forms VendorUnknown Affected 6.5 to before 7.0 Fixed in 7.0 Patch available CNA

Remediation

Update Formidable Forms to version 7.0, the fixed version.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Formidable Forms (Unknown) Fixed in 7.0

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-85642
  2. 2026-10-21 Alias added: GHSA-4w7f-p9m2-jxgx

References

Exploit 1

Sources

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