Falhas do tipo CWE-20

5.887 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-2021-43448MEDIUMONLYOFFICE all versions as of 2021-11-08 is vulnerable to Improper Input Validation. A lack of input validation can allow an attacker to spoEPSS 1.0%CVE-2022-36362HIGHA vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCE (6ED1052-1MD08-0BA2) (All versionsEPSS 1.0%CVE-2020-1756—In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, insufficient input escaping was applied to the PHP unit webrunner admin tool.EPSS 1.0%CVE-2024-20684MEDIUMWindows Hyper-V Denial of Service VulnerabilityEPSS 1.0%CVE-2024-0710MEDIUMGP Unique ID <= 1.5.5 - Unauthenticated Form Submission Unique ID ModificationEPSS 1.0%CVE-2021-22678—Cscape (All versions prior to 9.90 SP4) lacks proper validation of user-supplied data when parsing project files. This could lead to memory EPSS 1.0%CVE-2020-15184LOWAliases are never checked in HelmEPSS 1.0%CVE-2020-2504MEDIUMAbsolute path traversal vulnerability in QESEPSS 1.0%CVE-2023-50694CRITICALAn issue in dom96 HTTPbeast v.0.4.1 and before allows a remote attacker to send a malicious crafted request due to insufficient parsing in tEPSS 1.0%CVE-2021-35370CRITICALAn issue found in Peacexie Imcat v5.4 allows attackers to execute arbitrary code via the incomplete filtering function.EPSS 1.0%CVE-2026-48315CRITICALColdFusion | Improper Input Validation (CWE-20)EPSS 1.0%CVE-2026-48334CRITICALIllustrator | Improper Input Validation (CWE-20)EPSS 1.0%CVE-2023-29255HIGHIBM DB2 for Linux, UNIX and Windows denial of serviceEPSS 1.0%CVE-2023-26021HIGHIBM Db2 denial of serviceEPSS 1.0%CVE-2022-43566HIGHRisky command safeguards bypass via Search ID query in Analytics Workspace in Splunk EnterpriseEPSS 1.0%CVE-2024-2257CRITICALPassword Policy Bypass Vulnerability in Digisol RouterEPSS 1.0%CVE-2020-15194MEDIUMDenial of Service in TensorflowEPSS 1.0%CVE-2021-21510MEDIUMDell iDRAC8 versions prior to 2.75.100.75 contain a host header injection vulnerability. A remote unauthenticated attacker may potentially eEPSS 1.0%CVE-2023-4551HIGHCommand Injection via Task SchedulerEPSS 1.0%CVE-2025-43401HIGHA denial-of-service issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS TaEPSS 1.0%