Falhas do tipo CWE-20

5.454 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2024-21975HIGHImproper input validation in the NPU driver could allow an attacker to supply a specially crafted pointer potentially leading to arbitrary cEPSS 0.3%CVE-2024-21974HIGHImproper input validation in the NPU driver could allow an attacker to supply a specially crafted pointer potentially leading to arbitrary cEPSS 0.3%CVE-2026-15131MEDIUMInappropriate implementation in Navigation in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to bypass site isolation via aEPSS 0.3%CVE-2026-34670MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-34669MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-34679MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-47903MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-34688MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-15124MEDIUMInsufficient policy enforcement in Passwords in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to bypass same origin policyEPSS 0.3%CVE-2026-79065MEDIUMImproper input validation in Network in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer procEPSS 0.3%CVE-2026-78976MEDIUMImproper input validation in StorageAccessAPI in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the rendEPSS 0.3%CVE-2026-79106MEDIUMImproper input validation in Input in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer procesEPSS 0.3%CVE-2026-44658LOWZen Browser: RSS Live-Folder Item URLs Are Not Scheme-Restricted Before Trusted Tab CreationEPSS 0.3%CVE-2026-79214MEDIUMImproper input validation in Preload in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer procEPSS 0.3%CVE-2026-34668MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-21864MEDIUMRemote DoS from malformed RESTORE commandEPSS 0.3%CVE-2024-2248MEDIUMJFrog Artifactory Header InjectionEPSS 0.3%CVE-2026-87573MEDIUMImproper input validation in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a craEPSS 0.3%CVE-2026-48302MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-34666MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%