Falhas do tipo CWE-20

5.399 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-2023-2454HIGHschema_element defeats protective search_path changes; It was found that certain database calls in PostgreSQL could permit an authed attackeEPSS 1.2%CVE-2021-39193MEDIUMTransaction validity oversight in pallet-ethereumEPSS 1.2%CVE-2025-64986HIGHCommand Injection in 1E-Explorer-TachyonCore-DevicesListeningOnAPort InstructionEPSS 1.2%CVE-2023-35619MEDIUMMicrosoft Outlook for Mac Spoofing VulnerabilityEPSS 1.2%CVE-2018-10908MEDIUMIt was found that vdsm before version 4.20.37 invokes qemu-img on untrusted inputs without limiting resources. By uploading a specially crafEPSS 1.2%CVE-2018-15632HIGHImproper input validation in database creation logic in Odoo Community 11.0 and earlier and Odoo Enterprise 11.0 and earlier, allows remote EPSS 1.2%CVE-2023-28330MEDIUMMoodle: authenticated arbitrary file read through malformed backup fileEPSS 1.2%CVE-2025-30355HIGHSynapse vulnerable to federation denial of service via malformed eventsEPSS 1.2%CVE-2026-0404MEDIUMInsufficient input validation in NETGEAR Orbi routersEPSS 1.2%CVE-2020-7823HIGHDaviewIndy Multiple VulnerabilitiesEPSS 1.2%CVE-2024-31867MEDIUMApache Zeppelin: LDAP search filter query Injection VulnerabilityEPSS 1.2%CVE-2023-6879CRITICALheap buffer overflow in libaomEPSS 1.2%CVE-2024-29831HIGHApache DolphinScheduler: RCE by arbitrary js executionEPSS 1.2%CVE-2023-29335HIGHMicrosoft Word Security Feature Bypass VulnerabilityEPSS 1.2%CVE-2022-24711CRITICALRemote CLI Command Execution Vulnerability in CodeIgniter4EPSS 1.2%CVE-2024-8755HIGHImproper Input Validation vulnerability of Authenticated User in Progress LoadMaster allows : OS Command Injection.EPSS 1.2%CVE-2017-12297—A vulnerability in Cisco WebEx Meeting Center could allow an authenticated, remote attacker to initiate connections to arbitrary hosts, aka EPSS 1.2%CVE-2020-7803HIGHZoneplayer ActiveX File Download VulnerabilityEPSS 1.2%CVE-2020-7822HIGHDaviewIndy Multiple VulnerabilitiesEPSS 1.2%CVE-2025-31281CRITICALAn input validation issue was addressed with improved memory handling. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, EPSS 1.2%