Weaknesses of type CWE-345

557 results

Verificação Insuficiente da Autenticidade de Dados

O software recebe dados de uma fonte externa (requisição HTTP, arquivo, API, mensagem) mas não valida adequadamente se eles realmente vêm de quem diz vir, ou se não foram alterados no caminho. Isso permite que um atacante falsifique ou modifique dados e o sistema os processe como legítimos, causando desde injeção de código até manipulação de lógica de negócio.

Example

Uma API de pagamento que recebe um JSON com status='pagamento confirmado' mas não verifica assinatura HMAC ou JWT. Um atacante intercepta a resposta, altera o status para 'aprovado' e envia de volta; o servidor processa como válido. Outro caso: um formulário que aceita um 'user_id' do cliente sem validar se aquele usuário é quem está fazendo a requisição.

How to mitigate

Use assinaturas criptográficas (HMAC-SHA256, RSA, ECDSA) ou tokens assinados (JWT) para dados críticos; valide origem com CORS e referer headers; nunca confie em dados do cliente sem verificação no servidor; implemente rate limiting e detecção de anomalias para detectar tentativas de manipulação em tempo real.

CVE-2026-35659MEDIUMOpenClaw < 2026.3.22 - Unresolved Service Metadata Routing via Bonjour and DNS-SD DiscoveryEPSS 0.1%CVE-2022-33861MEDIUMInsufficient verification of authenticity in IPPEPSS 0.1%CVE-2026-30603MEDIUMAn issue in the firmware update mechanism of Qianniao QN-L23PA0904 v20250721.1640 allows attackers to gain root access, install backdoors, aEPSS 0.1%CVE-2022-42267HIGHNVIDIA GPU Display Driver for Windows contains a vulnerability where a regular user can cause an out-of-bounds read, which may lead to code EPSS 0.1%CVE-2026-92400MEDIUMPayment Gateway for PayPal on WooCommerce < 9.2.1 - Unauthenticated Payment Bypass via Sandbox IPN Environment ConfusionEPSS 0.1%CVE-2026-83537MEDIUMWP Express Checkout < 2.5.0 - Unauthenticated Payment Bypass via wpec_process_empty_paymentEPSS 0.1%CVE-2026-82215MEDIUMWC PayPay Gateway 0.5 - 0.9.3 - Unauthenticated Payment Bypass via Unverified WebhookEPSS 0.1%CVE-2026-83533MEDIUMWP Express Checkout < 2.4.9 - Unauthenticated Payment Bypass via wpec_process_paymentEPSS 0.1%CVE-2023-22315MEDIUM Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior use a proprietary local area network (LAN) protocol that does not verify updates EPSS 0.1%CVE-2026-15148MEDIUMWP Events Manager < 2.2.5 - Unauthenticated Payment Bypass and Booking Status Update via IDOREPSS 0.1%CVE-2026-84043MEDIUMePayco Payment Gateway for WooCommerce < 8.4.7 - Unauthenticated Payment Confirmation BypassEPSS 0.1%CVE-2026-86809MEDIUMPersian Elementor < 2.8.2 - Unauthenticated ZarinPal Payment Callback Authority BypassEPSS 0.1%CVE-2024-54111MEDIUMRead/Write vulnerability in the image decoding module Impact: Successful exploitation of this vulnerability will affect availability.EPSS 0.1%CVE-2021-26396MEDIUMInsufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest. EPSS 0.1%CVE-2026-15239MEDIUMSimple CAPTCHA with Cloudflare Turnstile < 1.42.0 - Unauthenticated Turnstile Protection Bypass via Reusable Forminator Cache KeyEPSS 0.1%CVE-2026-15211MEDIUMSubscriptions for WooCommerce < 2.0.1 - Payment Bypass via Attacker-Supplied PayPal Capture TokenEPSS 0.1%CVE-2026-24775MEDIUMOpenProject has Forced Actions, Content Spoofing, and Persistent DoS via ID Manipulation in OpenProject Blocknote Editor ExtensionEPSS 0.1%CVE-2026-78296MEDIUMWordPress FluentAuth plugin <= 2.1.2 - Email Verification Bypass vulnerabilityEPSS 0.1%CVE-2026-33243HIGHbarebox: FIT Signature Verification Bypass VulnerabilityEPSS 0.1%CVE-2026-15246MEDIUMRealHomes Memberships < 3.1.0 - Subscriber+ Membership Payment BypassEPSS 0.1%