Falhas do tipo CWE-20

5.423 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-2026-75686CRITICALAdobe Connect | Improper Input Validation (CWE-20)EPSS 0.6%CVE-2024-3493HIGHRockwell Automation ControlLogix and GaurdLogix Vulnerable to Major Nonrecoverable Fault Due to Invalid Header ValueEPSS 0.6%CVE-2024-1243CRITICALRemote code execution and local privilege escalation in Wazuh Windows agent via NetNTLMv2 hash theftEPSS 0.6%CVE-2023-0751MEDIUMGELI silently omits the keyfile if read from stdinEPSS 0.6%CVE-2024-11737CRITICALCWE-20: Improper Input Validation vulnerability exists that could lead to a denial of service and a loss of confidentiality, integrity of thEPSS 0.6%CVE-2026-31900HIGHBlack's vulnerable version parsing leads to RCE in GitHub ActionEPSS 0.6%CVE-2023-27487HIGHEnvoy client may fake the header `x-envoy-original-path`EPSS 0.6%CVE-2026-56398HIGHOpen WebUI - Stored Cross-Site Scripting via OAuth Picture Claim SVG Data URIEPSS 0.6%CVE-2022-43563HIGHRisky command safeguards bypass via rex search command field names in Splunk EnterpriseEPSS 0.6%CVE-2022-43565HIGHRisky command safeguards bypass via ‘tstats command JSON in Splunk EnterpriseEPSS 0.6%CVE-2023-41336MEDIUMPrevent injection of invalid entity ids for "autocomplete" fields in symfony ux-autocompleteEPSS 0.6%CVE-2024-20484HIGHCisco Enterprise Chat and Email Denial of Service VulnerabilityEPSS 0.6%CVE-2026-58624MEDIUMApache MINA SSHD: Remote execution of JGit commands can write files on the serverEPSS 0.6%CVE-2019-19163HIGHCommax WallPad Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-22868HIGHgo-ethereum has a DoS via malicious p2p messageEPSS 0.6%CVE-2026-45685HIGHOpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messagesEPSS 0.6%CVE-2024-20271HIGHA vulnerability in the IP packet processing of Cisco Access Point (AP) Software could allow an unauthenticated, remote attacker to cause a dEPSS 0.6%CVE-2023-28732MEDIUMMissing access control affecting the AcyMailing plugin for JoomlaEPSS 0.6%CVE-2022-39338LOWStored cross site scripting (XSS) vulnerability via Authorization Endpoint in user_oidcEPSS 0.6%CVE-2026-25722HIGHClaude Code Vulnerable to Command Injection via Directory Change Bypasses Write ProtectionEPSS 0.6%