Weaknesses of type CWE-345

555 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-2026-18674HIGHKong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifierEPSS 0.4%CVE-2023-37264LOWPipelines do not validate child UIDsEPSS 0.4%CVE-2025-66255CRITICALUnauthenticated Arbitrary File Upload (upgrade_contents.php)EPSS 0.4%CVE-2024-27305MEDIUMSMTP smuggling in aiosmtpdEPSS 0.4%CVE-2022-23556HIGHCodeIgniter is vulnerable to IP address spoofing when using proxyEPSS 0.4%CVE-2018-10626MEDIUMMedtronic MyCareLink 24950 Patient Monitor Insufficient Verification of Data AuthenticityEPSS 0.4%CVE-2022-34845MEDIUMA firmware update vulnerability exists in the sysupgrade functionality of Robustel R1510 3.1.16 and 3.3.0. A specially-crafted network packeEPSS 0.4%CVE-2022-41960MEDIUMBigBlueButton contains DoS via failed authToken validationEPSS 0.4%CVE-2019-16007MEDIUMCisco AnyConnect Secure Mobility Client for Android Service Hijack VulnerabilityEPSS 0.4%CVE-2023-41045LOWInsecure source port usage for DNS queries in GraylogEPSS 0.4%CVE-2025-63910HIGHAn authenticated arbitrary file upload vulnerability in Cohesity TranZman Migration Appliance Release 4.0 Build 14614 allows attackers with EPSS 0.4%CVE-2022-32252MEDIUMA vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). The application does not perform the integrity chEPSS 0.4%CVE-2018-10894MEDIUMIt was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use thiEPSS 0.4%CVE-2019-3807LOWAn issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authEPSS 0.4%CVE-2023-28863CRITICALAMI MegaRAC SPx12 and SPx13 devices have Insufficient Verification of Data Authenticity.EPSS 0.4%CVE-2026-26007HIGHcryptography Subgroup Attack Due to Missing Subgroup Validation for SECT CurvesEPSS 0.3%CVE-2026-71965HIGHCyberPanel 2.4.3 Authenticated RCE via Remote Backup FeatureEPSS 0.3%CVE-2025-8980HIGHTenda G1 Firmware Update check_upload_file data authenticityEPSS 0.3%CVE-2026-9242MEDIUMRegistrationMagic <= 6.0.8.6 - Authenticated (Subscriber+) Authentication Bypass via Forged PayPal IPN RequestEPSS 0.3%CVE-2021-21588MEDIUMDell EMC PowerFlex, v3.5.x contain a Cross-Site WebSocket Hijacking Vulnerability in the Presentation Server/WebUI. An unauthenticated attacEPSS 0.3%