Weaknesses of type CWE-20

5,453 results

Validação inadequada de entrada

O software recebe dados do usuário ou de fontes externas, mas não verifica ou verifica de forma incompleta se esses dados têm as propriedades necessárias para processar com segurança. Isso permite que entradas malformadas, maliciosas ou inesperadas passem por controles e causem comportamentos indevidos — desde crashes até injeção de código.

Example

Uma aplicação web recebe um parâmetro numérico via GET, mas não valida se é realmente um número inteiro válido antes de usá-lo em uma consulta SQL. Um atacante envia um valor com caracteres especiais (ex: `1' OR '1'='1`), conseguindo injetar código SQL direto no banco de dados.

How to mitigate

Implemente validação rigorosa na entrada: defina o tipo, formato, comprimento e intervalo esperados; rejeite tudo que não se encaixe. Use listas de caracteres permitidos ('whitelist'), escape de dados para o contexto específico (SQL, HTML, URL) e bibliotecas de validação consolidadas. Nunca confie em dados do cliente.

CVE-2026-10917HIGHInsufficient validation of untrusted input in Media in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised thEPSS 0.3%CVE-2025-59187HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2023-28981MEDIUMJunos OS and Junos OS Evolved: If malformed IPv6 router advertisements are received, memory corruption will occur which causes an rpd crashEPSS 0.3%CVE-2026-22700HIGHRustCrypto Has Insufficient Length Validation in decrypt() in SM2-PKEEPSS 0.3%CVE-2026-44518MEDIUMliboqs: XMSS Buffer Overread BugEPSS 0.3%CVE-2026-10920HIGHInsufficient validation of untrusted input in WebShare in Google Chrome on Mac prior to 149.0.7827.53 allowed a remote attacker who had compEPSS 0.3%CVE-2025-66400MEDIUMmdast-util-to-hast unsanitized class attributeEPSS 0.3%CVE-2026-5885MEDIUMInsufficient validation of untrusted input in WebML in Google Chrome on Windows prior to 147.0.7727.55 allowed a remote attacker to obtain pEPSS 0.3%CVE-2021-46771—Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by EPSS 0.3%CVE-2024-12353MEDIUMSourceCodester Phone Contact Manager System User Menu MenuDisplayStart input validationEPSS 0.3%CVE-2025-43533MEDIUMThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.2 and iPadOS 26.2, macOS SeEPSS 0.3%CVE-2026-10922HIGHInsufficient validation of untrusted input in DevTools in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who convinced a useEPSS 0.3%CVE-2026-14118MEDIUMInsufficient data validation in DevTools in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who convinced a user to engage inEPSS 0.3%CVE-2026-21310MEDIUMAdobe Commerce | Improper Input Validation (CWE-20)EPSS 0.3%CVE-2026-14115HIGHInsufficient validation of untrusted input in Cast in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised theEPSS 0.3%CVE-2026-13025HIGHRace in DevTools in Google Chrome prior to 149.0.7827.197 allowed a remote attacker who had compromised the renderer process to potentially EPSS 0.3%CVE-2024-20034HIGHIn battery, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege withEPSS 0.3%CVE-2021-45916LOWSUN & MOON RISE CO., LTD. Shockwall - Improper Input ValidationEPSS 0.3%CVE-2026-13856HIGHInsufficient validation of untrusted input in Speech in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker who had coEPSS 0.3%CVE-2026-9982HIGHInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised tEPSS 0.3%