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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Contact Form 7 Paypal Add On Plugin | — | Update contact-form-7-paypal-add-on plugin to version 2.5, or a newer patched version | Jul 31, 2026 | Jul 6, 2026 |
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