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-2026-81392MEDIUMMicrosoft Excel Information Disclosure VulnerabilityEPSS 0.5%CVE-2026-70314MEDIUMMicrosoft Office Information Disclosure VulnerabilityEPSS 0.5%CVE-2024-33999CRITICALmoodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.phpEPSS 0.5%CVE-2026-70318MEDIUMMicrosoft Excel Information Disclosure VulnerabilityEPSS 0.5%CVE-2026-33826HIGHWindows Active Directory Remote Code Execution VulnerabilityEPSS 0.5%CVE-2019-1605HIGHCisco NX-OS Software NX-API Arbitrary Code Execution VulnerabilityEPSS 0.5%CVE-2026-9521MEDIUMfraillt bitsery std_smart_ptr.h loadFromSharedState improper validation of specified type of inputEPSS 0.5%CVE-2024-52286LOWSelf Cross Site Scripting (XSS) In Merge Functionality in Stirling-PDFEPSS 0.5%CVE-2024-0396HIGHMissing Server-Side Input Validation in HTTP ParameterEPSS 0.5%CVE-2025-20142HIGHCisco IOS XR Software for ASR 9000 Series Routers L2VPN Denial of Service VulnerabilityEPSS 0.5%CVE-2026-47780MEDIUMfree5GC: UDR Improper ueId validation in free5GC EE subscription handlers allows arbitrary identifier persistenceEPSS 0.5%CVE-2024-29838HIGHUnsanitised variable on DAL_ADD in Evolution Controller causes application level denial of service and crashEPSS 0.5%CVE-2026-4860MEDIUM648540858 wvp-GB28181-pro API Endpoint RedisTemplateConfig.java GenericFastJsonRedisSerializer deserializationEPSS 0.5%CVE-2026-48289LOWAdobe Experience Manager | Improper Input Validation (CWE-20)EPSS 0.5%CVE-2025-9060CRITICALMFlash Remote Code Execution (RCE) after authentication of a user with the "administrator" roleEPSS 0.5%CVE-2026-48288LOWAdobe Experience Manager | Improper Input Validation (CWE-20)EPSS 0.5%CVE-2026-75726LOWAdobe Experience Manager | Improper Input Validation (CWE-20)EPSS 0.5%CVE-2025-69986HIGHA buffer overflow vulnerability exists in the ONVIF GetStreamUri function of LSC Indoor Camera V7.6.32. The application fails to validate thEPSS 0.5%CVE-2017-12312—An untrusted search path (aka DLL Preloading) vulnerability in the Cisco Immunet antimalware installer could allow an authenticated, local aEPSS 0.5%CVE-2022-40277HIGHJoplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdEPSS 0.5%