Weaknesses of type CWE-20

5,454 results

Validação inadequada de entrada

O software recebe dados do usuário ou de fontes externas, mas não verifica ou verifica de forma incompleta se esses dados têm as propriedades necessárias para processar com segurança. Isso permite que entradas malformadas, maliciosas ou inesperadas passem por controles e causem comportamentos indevidos — desde crashes até injeção de código.

Example

Uma aplicação web recebe um parâmetro numérico via GET, mas não valida se é realmente um número inteiro válido antes de usá-lo em uma consulta SQL. Um atacante envia um valor com caracteres especiais (ex: `1' OR '1'='1`), conseguindo injetar código SQL direto no banco de dados.

How to mitigate

Implemente validação rigorosa na entrada: defina o tipo, formato, comprimento e intervalo esperados; rejeite tudo que não se encaixe. Use listas de caracteres permitidos ('whitelist'), escape de dados para o contexto específico (SQL, HTML, URL) e bibliotecas de validação consolidadas. Nunca confie em dados do cliente.

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%