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-2024-38043HIGHPowerShell Elevation of Privilege VulnerabilityEPSS 0.7%CVE-2024-2427HIGHRockwell Automation - Denial-of-service and Input Validation Vulnerabilities in PowerFlex® 527EPSS 0.7%CVE-2021-3612—An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the useEPSS 0.7%CVE-2021-33113HIGHImproper input validation for some Intel(R) PROSet/Wireless WiFi in multiple operating systems and Killer(TM) WiFi in Windows 10 and 11 may EPSS 0.7%CVE-2023-4241HIGHlol-html panics on certain HTML inputsEPSS 0.7%CVE-2024-25997MEDIUMPHOENIX CONTACT: Log injection in CHARX SeriesEPSS 0.7%CVE-2019-14866MEDIUMIn all versions of cpio before 2.13 does not properly validate input files when generating TAR archives. When cpio is used to create TAR arcEPSS 0.7%CVE-2025-29821MEDIUMMicrosoft Dynamics Business Central Information Disclosure VulnerabilityEPSS 0.7%CVE-2023-22835HIGHDenial of Service in Foundry IssuesEPSS 0.7%CVE-2026-39868CRITICALThis issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2EPSS 0.7%CVE-2025-1186MEDIUMdayrui XunRuiCMS Api.php deserializationEPSS 0.7%CVE-2026-53587HIGHlibgit2 - Unauthenticated network-reachable heap out-of-bounds read in transports/smart_pkt.c:set_dataEPSS 0.7%CVE-2023-38060MEDIUMHost header injection by attachments in web serviceEPSS 0.7%CVE-2022-47917MEDIUMCVE-2022-47917EPSS 0.7%CVE-2026-49086MEDIUMApache Camel Dapr: Pub/Sub consumer copied the inbound CloudEvent's pub/sub-name and topic into producer-direction routing headers, allowing an actor who can publish to the subscribed topic to influence internal behaviourEPSS 0.7%CVE-2026-86683HIGHBroken Authentication VulnerabilityEPSS 0.7%CVE-2026-9213MEDIUMInsufficient input validation in certain NETGEAR routersEPSS 0.7%CVE-2020-3199HIGHCisco IOx Application Environment for IOS Software for Cisco Industrial Routers VulnerabilitiesEPSS 0.7%CVE-2024-26126LOWAdobe Experience Manager | Improper Input Validation (CWE-20)EPSS 0.7%CVE-2026-61363HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.7%