Weaknesses of type CWE-20

5,453 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-2021-1448HIGHCisco Firepower Threat Defense Software Command Injection VulnerabilityEPSS 0.3%CVE-2026-13813HIGHInsufficient policy enforcement in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker who had compromisEPSS 0.3%CVE-2024-4353MEDIUMStored XSS in Generate Board Name Input FieldEPSS 0.3%CVE-2026-13911MEDIUMInsufficient policy enforcement in Spellcheck in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the rendEPSS 0.3%CVE-2026-13025HIGHRace in DevTools in Google Chrome prior to 149.0.7827.197 allowed a remote attacker who had compromised the renderer process to potentially EPSS 0.3%CVE-2026-21310MEDIUMAdobe Commerce | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-49392MEDIUMWazuh: Local SQL injection in FIM db due to path lookup interpolation in wazuh-syscheckdEPSS 0.3%CVE-2026-13856HIGHInsufficient validation of untrusted input in Speech in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who had coEPSS 0.3%CVE-2024-51741MEDIUMRedis allows denial-of-service due to malformed ACL selectorsEPSS 0.3%CVE-2026-9982HIGHInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised tEPSS 0.3%CVE-2024-20034HIGHIn battery, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege withEPSS 0.3%CVE-2026-13891HIGHInsufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromisEPSS 0.3%CVE-2021-0156HIGHImproper input validation in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable an escalation oEPSS 0.3%CVE-2026-100663HIGHNetty HTTP/1 CONNECT authority-form mistranslated to malformed HTTP/3EPSS 0.3%CVE-2026-75991HIGHIllustrator | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2024-4028LOWKeycloak-core: stored xss in keycloak when creating a items in admin consoleEPSS 0.3%CVE-2025-44016HIGHFile Hash Validation Bypass in NomadBranch.exeEPSS 0.3%CVE-2026-11047CRITICALInappropriate implementation in Base in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the reEPSS 0.3%CVE-2024-52337MEDIUMTuned: improper sanitization of `instance_name` parameter of the `instance_create()` methodEPSS 0.3%CVE-2026-10966CRITICALInappropriate implementation in Codecs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox esEPSS 0.3%