{"schema":"threatline.record/2","record":{"id":"CVE-2026-77466","aliases":["GHSA-5wh2-hg7q-6hv3"],"summary":"Lychee: Webshop payment bypass via unrestricted \"Dummy\" gateway selection","details":"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.","categories":["Unclassified"],"product":"Lychee","vendor":"LycheeOrg","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-77466","source_modified_at":"2026-10-15T17:57:21.560Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Lychee","vendor":"LycheeOrg","versions":[{"version":"< 7.7.0","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00439,"percentile":0.37109,"score_date":"2026-10-23"},"published_at":"2026-10-15T16:36:58.410Z","modified_at":"2026-10-15T17:57:21.560Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-77466","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T17:57:21.560Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-77466","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/pull/4507","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/commit/8b73656f920c682862b9199acc87fbaf72ee5a90","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T17:56:39.359165Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T17:57:21.560Z","content_hash":"952512f09aa8d295dfa1e2c7aeac44ad7d86cf3896556515ce7dfd1d5328e4fc"}}