Falhas do tipo CWE-20

5.455 resultados

Validação inadequada de entrada

A aplicação recebe dados do usuário ou de fontes externas mas não valida (ou valida mal) se esses dados têm as propriedades necessárias para processamento seguro. Isso abre porta para injeção de código, buffer overflow, lógica corrompida e outros ataques que exploram dados malformados ou maliciosos.

Exemplo

Um formulário web aceita um CPF sem verificar se tem 11 dígitos numéricos, ou um app móvel recebe um ID de usuário em JSON sem confirmar se é um inteiro — atacantes exploram isso para acessar dados de outros usuários, executar queries SQL maliciosas ou causar erro de processamento.

Como mitigar

Implemente validação rigorosa na entrada: verifique tipo, comprimento, formato, intervalo de valores permitidos. Use whitelist (aceitar só o que você sabe ser seguro) em vez de blacklist. Valide tanto no cliente quanto no servidor, e use bibliotecas de parsing seguro para formatos complexos (XML, JSON).

CVE-2021-0076MEDIUMImproper Validation of Specified Index, Position, or Offset in Input in firmware for some Intel(R) PROSet/Wireless Wi-Fi in multiple operatiEPSS 0.3%CVE-2026-47909MEDIUMDreamweaver Desktop | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-20020MEDIUMA vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjEPSS 0.3%CVE-2026-17749CRITICALInsufficient validation of untrusted input in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user toEPSS 0.3%CVE-2026-17786HIGHInsufficient validation of untrusted input in DevTools in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to iEPSS 0.3%CVE-2024-5533MEDIUMDivi <= 4.25.1 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.3%CVE-2026-48353MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2021-3675MEDIUMsynaTEE.signed.dll Out-Of-Bounds Heap WriteEPSS 0.3%CVE-2026-76198MEDIUMCAI Content Credentials | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2022-22423MEDIUMIBM Common Cryptographic Architecture (CCA 5.x MTM for 4767 and CCA 7.x MTM for 4769) could allow a local user to cause a denial of service EPSS 0.3%CVE-2026-27299MEDIUMAdobe Framemaker | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-13480LOWOut-of-bounds read in LoRaWAN fragmented data block transport (FUOTA) downlink handlerEPSS 0.3%CVE-2026-62519MEDIUMVulnerability in the Oracle Succession planning product of Oracle E-Business Suite (component: Succession plan). Supported versions that arEPSS 0.3%CVE-2025-55006MEDIUMFrappe Learning Holds Potential for Malicious SVG Upload in Image Upload FeatureEPSS 0.3%CVE-2025-64515MEDIUMOpen Forms prefill data in read-only components can be tamperedEPSS 0.3%CVE-2022-38076LOWImproper input validation in some Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi software may allow an authenticated user to potentially EPSS 0.3%CVE-2025-64176MEDIUMThinkDashboard: Arbitrary File Upload vulnerability in the Backup Import FeatureEPSS 0.3%CVE-2022-47924MEDIUMArbitrary Code Execution using the validate function of csaf-validator-libEPSS 0.3%CVE-2024-36284MEDIUMImproper input validation in some Intel(R) Neural Compressor software before version v3.0 may allow an authenticated user to potentially enaEPSS 0.3%CVE-2021-4211MEDIUMA potential vulnerability in the SMI callback function used in the SMBIOS event log driver in some Lenovo Desktop, ThinkStation, and ThinkEdEPSS 0.3%