Weaknesses of type CWE-20

5,888 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-2026-16139HIGHArbitrary file write via path traversal in Progress ShareFile Storage Zones Controller potentially leading to remote code executionEPSS 0.9%CVE-2021-4047—The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issueEPSS 0.9%CVE-2022-39060CRITICALChangingTec MegaServiSignAdapter - Improper Input ValidationEPSS 0.9%CVE-2021-29432MEDIUMMalicious users could control the content of invitation emailsEPSS 0.9%CVE-2021-23036—On version 16.0.x before 16.0.1.2, when a BIG-IP ASM and DataSafe profile are configured on a virtual server, undisclosed requests can causeEPSS 0.9%CVE-2022-20784MEDIUMCisco Web Security Appliance Filter Bypass VulnerabilityEPSS 0.9%CVE-2021-23032—On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.4, and all versions of 13.1.x and 12.1.x, when a BIG-IP DNS systEPSS 0.9%CVE-2021-23044—On BIG-IP version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x andEPSS 0.9%CVE-2021-23045—On BIG-IP version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.xEPSS 0.9%CVE-2021-23033—On BIG-IP Advanced WAF and BIG-IP ASM version 16.x before 16.1.0x, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, aEPSS 0.9%CVE-2021-23028—On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.2, and 13.1.x before 13.1.4, when JSON content profiles are EPSS 0.9%CVE-2024-29998MEDIUMWindows Mobile Broadband Driver Remote Code Execution VulnerabilityEPSS 0.9%CVE-2024-30002MEDIUMWindows Mobile Broadband Driver Remote Code Execution VulnerabilityEPSS 0.9%CVE-2022-29257MEDIUMElectron's AutoUpdater module fails to validate certain nested components of the bundleEPSS 0.9%CVE-2024-38234MEDIUMWindows Networking Denial of Service VulnerabilityEPSS 0.9%CVE-2025-0422HIGHAuthenticated Remote Code Execution via ScriptVarEPSS 0.9%CVE-2021-40365HIGHAffected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a deniEPSS 0.9%CVE-2025-14213HIGHCato's Socket WebUI is vulnerable to OS Command InjectionEPSS 0.9%CVE-2024-50305HIGHApache Traffic Server: Valid Host field value can cause crashesEPSS 0.9%CVE-2021-29433MEDIUMDenial of service (via resource exhaustion) due to improper input validationEPSS 0.9%