CVE-2026-77470: falha de alta gravidade em LycheeOrg Lychee
Lychee: Webshop checkout lets the client override the payment `amount` sent to the gateway via malicious crafted POST request
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.3epss 0.5%
Lychee is a free, open-source photo-management tool. Prior to 7.7.1, the Supporter or Pro webshop POST /api/v2/Shop/Checkout/Process flow accepts an unrestricted additional_data array and CheckoutService::preparePurchaseParameters() merges it after server-computed purchase parameters. Because later string keys overwrite earlier keys, an unauthenticated buyer can replace amount, currency, returnUrl, cancelUrl, or transactionId before CheckoutService::processPayment() passes the parameters to a non-PayPal Omnipay gateway. An attacker can therefore make a gateway accept a successful payment for an attacker-selected amount and obtain auto-fulfilled goods while underpaying the merchant. The issue requires an enabled webshop, a purchasable item, and an affected Omnipay gateway. This issue is fixed in version 7.7.1.
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
Produtos afetados
LycheeOrg · LycheeCVEs relacionadas — LycheeOrg Lychee
No mesmo produto, das mais perigosas para as menos.
CVE-2025-50202HIGHLychee Path Traversal VulnerabilityEPSS 0.6%CVE-2023-52082HIGHLychee is vulnerable to an SQL Injection in explain DB queries.EPSS 0.5%CVE-2026-61611HIGHLychee: Missing rate limiting on album password unlock endpoint allows brute-force attacksEPSS 0.5%CVE-2026-77466HIGHLychee: Webshop payment bypass via unrestricted "Dummy" gateway selectionEPSS 0.4%CVE-2026-61838HIGHLychee: Album password bypass in ZIP downloadsEPSS 0.4%CVE-2026-77468MEDIUMLychee: Missing Authentication for Critical Function and Allocation of Resources Without Limits or Throttling on /docs/apiEPSS 0.4%