Weaknesses of type CWE-20

5,417 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-2024-49073MEDIUMWindows Mobile Broadband Driver Elevation of Privilege VulnerabilityEPSS 0.9%CVE-2022-31810HIGHA vulnerability has been identified in SiPass integrated (All versions < V2.90.3.8). Affected server applications improperly check the size EPSS 0.9%CVE-2019-1875MEDIUMCisco Prime Service Catalog Cross-Site Scripting VulnerabilityEPSS 0.9%CVE-2026-73418HIGHNextAuth.js: getToken() throws an uncaught exception on malformed Bearer authorization headersEPSS 0.9%CVE-2023-42661HIGHJFrog Artifactory Improper input validation leads to arbitrary file writeEPSS 0.9%CVE-2022-40266MEDIUMDenial-of-Service (DoS) Vulnerability in FTP Server Function on GOT2000 SeriesEPSS 0.9%CVE-2026-88064HIGHBackstage: Improper input validation in TechDocs MkDocs configurationEPSS 0.9%CVE-2024-38245HIGHKernel Streaming Service Driver Elevation of Privilege VulnerabilityEPSS 0.9%CVE-2025-59532HIGHCodex has sandbox bypass due to bug in path configuration logicEPSS 0.9%CVE-2023-32727MEDIUMCode execution vulnerability in icmppingEPSS 0.9%CVE-2023-28301LOWMicrosoft Edge (Chromium-based) Tampering VulnerabilityEPSS 0.9%CVE-2022-2529HIGHMultiple DoS Attack Vectors in sflow packet handlingEPSS 0.9%CVE-2025-64993MEDIUMCommand Injection in 1E-ConfigMgrConsoleExtensions InstructionsEPSS 0.9%CVE-2025-64991MEDIUMCommand Injection in 1E-PatchInsights-Deploy InstructionEPSS 0.9%CVE-2025-64992MEDIUMCommand Injection in 1E-Nomad-PauseNomadJobQueue InstructionEPSS 0.9%CVE-2023-28100CRITICALTIOCLINUX can send commands outside sandbox if running on a virtual consoleEPSS 0.9%CVE-2017-12273—A vulnerability in 802.11 association request frame processing for the Cisco Aironet 1560, 2800, and 3800 Series Access Points could allow aEPSS 0.9%CVE-2022-31036MEDIUMSymlink following allows leaking out-of-bounds YAML files from Argo CD repo-serverEPSS 0.9%CVE-2026-27891HIGHRemote Code Execution (RCE) via Zip Slip in Plugin Upload MechanismEPSS 0.9%CVE-2023-27491MEDIUMEnvoy forwards invalid Http2/Http3 downstream headersEPSS 0.9%