{"id":"CVE-2026-77466","revision":null,"records":[{"revision":"cc4f53ce8c814d9c90ad51d2ec282cad","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-77466","aliases":[],"title":"Lychee: Webshop payment bypass via unrestricted \"Dummy\" gateway selection","description":"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.","state":0,"publishedAt":"2026-10-15T16:36:58.41+00:00","modifiedAt":"2026-10-15T17:57:21.56+00:00","affected":[{"ecosystem":"Vendor product","name":"Lychee","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"LycheeOrg\",\n                    \"product\": \"Lychee\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 7.7.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.3,"severity":"HIGH"}],"references":["https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3","https://github.com/LycheeOrg/Lychee/pull/4507","https://github.com/LycheeOrg/Lychee/commit/8b73656f920c682862b9199acc87fbaf72ee5a90","https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77466","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77466","identifiers":["CVE-2026-77466"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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