Fallos del tipo CWE-20

5429 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-2022-39338LOWStored cross site scripting (XSS) vulnerability via Authorization Endpoint in user_oidcEPSS 0.6%CVE-2019-1834HIGHCisco Aironet Series Access Points Denial of Service VulnerabilityEPSS 0.6%CVE-2026-25722HIGHClaude Code Vulnerable to Command Injection via Directory Change Bypasses Write ProtectionEPSS 0.6%CVE-2026-51599CRITICALAn insufficient input validation vulnerability in the RTSP service of MERCURY MIPC252W v1.0.5 Build 230306 Rel.79931n allows an unauthenticaEPSS 0.6%CVE-2026-44778LOWInspektor Gadget: Unprivileged container can crash USDT note parser via crafted ELFEPSS 0.6%CVE-2026-49434HIGHApache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: LdapNetworkConnector instantiates denied transports and a remote-properties brokerEPSS 0.6%CVE-2026-81876HIGHHAPI FHIR: SHCParser DEFLATE infinite loop causes denial of serviceEPSS 0.6%CVE-2024-52309MEDIUMSFTPGo allows administrators to restrict command execution from the EventManagerEPSS 0.6%CVE-2026-69185HIGHSocket.IO: Zero-attachment Memory ExhaustionEPSS 0.6%CVE-2026-49218HIGHImageMagick: Policy Bypass in DCM decoder could result in image with invalid dimensionsEPSS 0.6%CVE-2026-33151HIGHsocket.io allows an unbounded number of binary attachmentsEPSS 0.6%CVE-2026-81875HIGHHAPI FHIR: SHCParser unbounded DEFLATE decompression causes denial of serviceEPSS 0.6%CVE-2026-46585HIGHApache Camel Lucene: The query control headers used non-Camel-prefixed names (QUERY, RETURN_LUCENE_DOCS) that bypass the HTTP header filter, allowing an HTTP client to inject the full-text search queryEPSS 0.6%CVE-2026-38639HIGHAn issue in the parse_month function (/time/strptime.rs) of relibc commit ab6a2e allows attackers to cause a Denial of Service (DoS) via parEPSS 0.6%CVE-2025-27731HIGHMicrosoft OpenSSH for Windows Elevation of Privilege VulnerabilityEPSS 0.6%CVE-2024-13681HIGHUncode <= 2.9.1.6 - Unauthenticated Arbitrary File Read in uncode_admin_get_oembedEPSS 0.6%CVE-2020-26082MEDIUMA vulnerability in the zip decompression engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthentiEPSS 0.6%CVE-2021-29462HIGHDNS rebinding in pupnpEPSS 0.6%CVE-2021-1466MEDIUMCisco SD-WAN vDaemon Buffer Overflow VulnerabilityEPSS 0.6%CVE-2025-31215MEDIUMThe issue was addressed with improved checks. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS Sequoia 15.EPSS 0.6%