Weaknesses of type CWE-20

5,429 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-2021-26251MEDIUMImproper input validation in the Intel(R) Distribution of OpenVINO(TM) Toolkit may allow an authenticated user to potentially enable denial EPSS 0.6%CVE-2024-33066CRITICALImproper Input Validation in WLAN Resource ManagerEPSS 0.6%CVE-2025-24060HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-20527MEDIUMImproper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading toEPSS 0.6%CVE-2025-24074HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-32721HIGHStored XSS in Maps elementEPSS 0.6%CVE-2026-55124MEDIUMMicrosoft Word Information Disclosure VulnerabilityEPSS 0.6%CVE-2025-26781HIGHAn issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330,EPSS 0.6%CVE-2026-33285HIGHLiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process CrashEPSS 0.6%CVE-2025-24062HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-6915CRITICALJFrog Artifactory Cache PoisoningEPSS 0.6%CVE-2022-36351MEDIUMImproper input validation in some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi software may allow an unauthenticated user to potentiallEPSS 0.6%CVE-2025-24073HIGHMicrosoft DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2023-20525MEDIUMInsufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped reEPSS 0.6%CVE-2025-24058HIGHWindows DWM Core Library Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-27932MEDIUMDeno's improper suffix match testing for DENO_AUTH_TOKENSEPSS 0.6%CVE-2024-0793HIGHKube-controller-manager: malformed hpa v1 manifest causes crashEPSS 0.6%CVE-2023-30450MEDIUMrpk in Redpanda before 23.1.2 mishandles the redpanda.rpc_server_tls field, leading to (for example) situations in which there is a data typEPSS 0.6%CVE-2025-21235HIGHWindows PrintWorkflowUserSvc Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-40720HIGHCHANGING Information Technology TCBServiSign Windows Version - Improper Input ValidationEPSS 0.6%