CVE-2026-11395 CF7 to Webhook <= 5.0.0 - Unauthenticated Server-Side Request Forgery via CF7 Field Placeholder in Webhook URL Host
Unauthenticated attackers can perform Server-Side Request Forgery to access internal services if the webhook URL uses a specific placeholder in the host.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11395?
CVE-2026-11395 is a high-severity server-side request forgery vulnerability in mariovalney CF7 to Webhook, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-11395?
How do I fix CVE-2026-11395?
No fix has been published for CVE-2026-11395 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-11395 being exploited?
There is no known exploitation of CVE-2026-11395 in the wild and no public exploit code.
Sources
Also known as GHSA-g67p-9qph-gpr2.