CVE-2026-77466

CVE-2026-77466 · Lychee: Webshop payment bypass via unrestricted "Dummy" gateway selection

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Lychee is a free, open-source photo-management tool. Prior to 7.7.0, Lychee hides the Omnipay Dummy test provider from the checkout options in production through OmnipayFactory::get_supported_providers(), but CreateSessionRequest validates only that the submitted provider is an OmnipayProviderType and does not enforce OmnipayProviderType::isAllowed(). A buyer, including a guest when webshop_allow_guest_checkout is enabled, can submit Dummy directly and complete the test gateway flow without a real payment. When webshop_auto_fulfill_enabled is enabled, OrderCompletedListener::fullfillOrder() can then release the purchasable item. The issue requires access to the Supporter or Pro webshop and an enabled purchasable item. Testing bypassed the closed-source license middleware, so whether the real license layer performs additional payment-provider validation remains unverified. The payment finalize status check itself is not the root cause. This issue is fixed in version 7.7.0.

CVSS 8.3 · High · EPSS 0.4%

Published

2026-10-15T16:36:58.410Z

Updated

2026-10-15T17:57:21.560Z

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