Weaknesses of type CWE-20

5,439 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-2024-9348HIGHDocker Desktop before v4.34.3 allows RCE via unsanitized GitHub source link in Build viewEPSS 0.5%CVE-2026-3469LOWA denial-of-service (DoS) vulnerability exists due to improper input validation in the SonicWall Email Security appliance, allowing a remoteEPSS 0.5%CVE-2026-45565HIGHRoxy-WI: EscapedString validator skips its '..' block when stripping (root cause for several path-traversal/RCE vectors)EPSS 0.5%CVE-2023-4550HIGHUnauthenticated Arbitrary File ReadEPSS 0.5%CVE-2011-20001HIGHA vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.3), SIMATIC S7-1200 CPU V2EPSS 0.5%CVE-2025-1385HIGHFail input validation in clickhouse-library-bridge API could lead to RCE under specific configurationEPSS 0.5%CVE-2025-15438MEDIUMPluXml Media Management medias.php __destruct deserializationEPSS 0.5%CVE-2026-56228MEDIUMCapgo - Denial of Service via Improper Password Policy Length ValidationEPSS 0.5%CVE-2026-65834MEDIUMCapsule: CapsuleConfiguration NodeMetadata regex fields lack webhook validation, allowing MustCompile panic on all Node admission requestsEPSS 0.5%CVE-2020-3206MEDIUMCisco IOS XE Software Catalyst 9800 Series Wireless Controllers Denial of Service VulnerabilityEPSS 0.5%CVE-2021-33155MEDIUMImproper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products before version 22.100 mayEPSS 0.5%CVE-2026-15288HIGHSureForms – Drag and Drop Form Builder for WordPress <= 2.2.1 - Unauthenticated Stripe Payment Amount ManipulationEPSS 0.5%CVE-2026-20153HIGHCisco RoomOS Security Hardening Release - Input Validation VulnerabilitiesEPSS 0.5%CVE-2026-20273HIGHCisco IOS XE Software Security Hardening ReleaseEPSS 0.5%CVE-2024-37794HIGHImproper input validation in CVC5 Solver v1.1.3 allows attackers to cause a Denial of Service (DoS) via a crafted SMT2 input file.EPSS 0.5%CVE-2021-0267HIGHJunos OS: Receipt of a crafted DHCP packet will cause the jdhcpd DHCP service to core.EPSS 0.5%CVE-2026-61711MEDIUMBuildKit: Custom frontend could bypass Seccomp/AppArmorEPSS 0.5%CVE-2022-38985HIGHThe facial recognition module has a vulnerability in input validation.Successful exploitation of this vulnerability may affect data confidenEPSS 0.5%CVE-2026-26156HIGHWindows Hyper-V Remote Code Execution VulnerabilityEPSS 0.5%CVE-2026-26143HIGHMicrosoft PowerShell Security Feature Bypass VulnerabilityEPSS 0.5%