CVE-2026-77466 (GCVE-0-2026-77466)
Vulnerability from cvelistv5 – Published: 2026-10-15 16:36 – Updated: 2026-10-15 17:57
VLAI
EPSS
VEX
Title
Lychee: Webshop payment bypass via unrestricted "Dummy" gateway selection
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 17:56 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/LycheeOrg/Lychee/security/advi… | x_refsource_CONFIRM |
| https://github.com/LycheeOrg/Lychee/pull/4507 | x_refsource_MISC |
| https://github.com/LycheeOrg/Lychee/commit/8b7365… | x_refsource_MISC |
| https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0 | x_refsource_MISC |
Impacted products
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{
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}
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"lastModified": "2026-10-15T21:08:49.703",
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