Falhas do tipo CWE-20

5.888 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-2022-28755CRITICALImproper URL parsing in Zoom ClientsEPSS 0.9%CVE-2026-21273HIGHColdFusion | Improper Input Validation (CWE-20)EPSS 0.9%CVE-2020-7871HIGHA vulnerability of Helpcom could allow an unauthenticated attacker to execute arbitrary command. This vulnerability exists due to insufficieEPSS 0.9%CVE-2018-10922HIGHAn input validation flaw exists in ttembed. With a crafted input file, an attacker may be able to trigger a denial of service condition due EPSS 0.9%CVE-2021-37863LOWMattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a cEPSS 0.9%CVE-2023-38690MEDIUMmatrix-appservice-irc IRC command injection via admin commands containing newlines EPSS 0.9%CVE-2021-23853HIGHImproper Input Validation of HTTP HeadersEPSS 0.9%CVE-2025-20184MEDIUMCisco Secure Email and Web Manager and Secure Web Appliance Command Injection VulnerabilityEPSS 0.9%CVE-2026-49827CRITICALWebErpMesv2 has Unauthenticated RCE via Unrestricted File Upload in HR Expense scan_file (CWE-434)EPSS 0.9%CVE-2019-1875MEDIUMCisco Prime Service Catalog Cross-Site Scripting VulnerabilityEPSS 0.9%CVE-2022-47189HIGHDoS via file upload vulnerability at Generex CS141EPSS 0.9%CVE-2026-78518HIGHMicrosoft Office Excel Remote Code Execution VulnerabilityEPSS 0.9%CVE-2026-69614HIGHMicrosoft Office Access Remote Code Execution VulnerabilityEPSS 0.9%CVE-2018-1070MEDIUMrouting before version 3.10 is vulnerable to an improper input validation of the Openshift Routing configuration which can cause an entire sEPSS 0.9%CVE-2022-26582HIGHPAX A930 device with PayDroid_7.1.1_Virgo_V04.3.26T1_20210419 can allow an attacker to gain root access through command injection in systoolEPSS 0.9%CVE-2025-1077CRITICALRemote Code Execution vulnerability in IBL Software Engineering Visual Weather and derived products (NAMIS, Aero Weather, Satellite Weather)EPSS 0.9%CVE-2021-36322MEDIUMDell Networking X-Series firmware versions prior to 3.0.1.8 contain a host header injection vulnerability. A remote unauthenticated attackerEPSS 0.9%CVE-2023-1289—A vulnerability was discovered in ImageMagick where a specially created SVG file loads itself and causes a segmentation fault. This flaw allEPSS 0.9%CVE-2024-44808CRITICALAn issue in Vypor Attack API System v.1.0 allows a remote attacker to execute arbitrary code via the user GET parameter.EPSS 0.9%CVE-2026-55993HIGHApache Camel Atmosphere Websocket: The inbound consumer maps externally-supplied WebSocket query parameters into the Exchange without a HeaderFilterStrategy, allowing injection of Camel control headers - enabling influencing internal behaviourEPSS 0.9%