CVE-2026-14236 Contact Form 7 – PayPal & Stripe Add-on < 2.5 - Open Redirect

Medium 4.7 Published Updated

An unauthenticated attacker can redirect victims to arbitrary external sites via crafted links in the Stripe checkout flow of this WordPress plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-14236?

CVE-2026-14236 is a medium-severity vulnerability in Unknown Contact Form 7, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Contact Form 7 WordPress plugin before 2.5 does not validate the host of a user-supplied return URL before using it as the success and cancel redirect targets of a Stripe checkout, allowing an unauthenticated attacker to redirect a victim, via a crafted link, to an arbitrary external site after the checkout flow.

Weakness: CWE-601

Which versions are affected by CVE-2026-14236?

How do I fix CVE-2026-14236?

No fix has been published for CVE-2026-14236 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-14236 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-14236 exists.

Sources

Also known as GHSA-66xh-mw5m-g493.

Is CVE-2026-14236 in your software?

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