Fallos del tipo CWE-20

5887 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2026-5946HIGHInvalid handling of CLASS != INEPSS 1.9%CVE-2022-24723MEDIUMImproper Input Validation in URI.jsEPSS 1.9%CVE-2019-13541—In Horner Automation Cscape 9.90 and prior, an improper input validation vulnerability has been identified that may be exploited by processiEPSS 1.9%CVE-2019-10191MEDIUMA vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-securEPSS 1.9%CVE-2024-46901LOWApache Subversion: mod_dav_svn denial-of-service via control characters in pathsEPSS 1.9%CVE-2020-3128HIGHCisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution VulnerabilitiesEPSS 1.9%CVE-2017-6792—A vulnerability in the batch provisioning feature in Cisco Prime Collaboration Provisioning Tool could allow an authenticated, remote attackEPSS 1.9%CVE-2019-1947HIGHCisco Email Security Appliance Denial of Service VulnerabilityEPSS 1.9%CVE-2020-27253—A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauEPSS 1.9%CVE-2018-1086MEDIUMpcs before versions 0.9.164 and 0.10 is vulnerable to a debug parameter removal bypass. REST interface of the pcsd service did not properly EPSS 1.9%CVE-2019-19298HIGHA vulnerability has been identified in SiNVR/SiVMS Video Server (All versions < V5.0.0), SiNVR/SiVMS Video Server (All versions >= V5.0.0 < EPSS 1.9%CVE-2023-25693CRITICALSqoop Apache Airflow Provider Remote Code Execution VulnerabilityEPSS 1.9%CVE-2024-27894HIGHApache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HTTP/HTTPS ProxyingEPSS 1.9%CVE-2024-4547CRITICALDelta Electronics DIAEnergie Unauthenticated SQL InjectionEPSS 1.9%CVE-2020-3172HIGHCisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service VulnerabilityEPSS 1.9%CVE-2020-2011HIGHPAN-OS: Panorama registration denial of serviceEPSS 1.9%CVE-2020-28591HIGHAn out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and MasterEPSS 1.9%CVE-2026-86679HIGHBroken Access Control vulnerabilityEPSS 1.9%CVE-2022-24828HIGHMissing input validation can lead to command execution in composerEPSS 1.9%CVE-2020-24679HIGHDenial of Service attack on Symphony PlusEPSS 1.9%