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-2026-36175MEDIUMAn issue in the U-Boot component of GNCC GP5 v7.1.76 allows physically-proximate attackers to bypass authentication and gain root access viaEPSS 0.3%CVE-2026-14100MEDIUMInsufficient data validation in NetworkCache in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data viaEPSS 0.3%CVE-2026-44379MEDIUMMISP: Improper UUID validation in MISP CollectionsEPSS 0.3%CVE-2026-56678MEDIUM9Router: Kiro region injection allows authenticated SSRF with Authorization header forwardingEPSS 0.3%CVE-2022-3388HIGHInput Validation Vulnerability in Hitachi Energy’s MicroSCADA Pro/X SYS600 ProductsEPSS 0.3%CVE-2026-20257MEDIUMImproper Input Validation through Classic Dashboard CSS in Splunk EnterpriseEPSS 0.3%CVE-2026-13893MEDIUMInsufficient validation of untrusted input in WebUI in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin dEPSS 0.3%CVE-2026-0282LOWPAN-OS: File Deletion Vulnerability in Management Web InterfaceEPSS 0.3%CVE-2024-27896HIGHInput verification vulnerability in the log module. Impact: Successful exploitation of this vulnerability can affect integrity.EPSS 0.3%CVE-2025-1440MEDIUMAdvanced iFrame <= 2024.5 - Unauthenticated Settings UpdateEPSS 0.3%CVE-2025-12946MEDIUMImproper input validation in NETGEAR Nighthawk routersEPSS 0.3%CVE-2026-79076MEDIUMImproper input validation in Sync in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to obtain sensitive information via crafEPSS 0.3%CVE-2026-101015MEDIUMTrusted Domain Project OpenDMARC policy.c improper validation of unsafe equivalence in inputEPSS 0.3%CVE-2025-66201HIGHLibreChat is Vulnerable to Server-Side Request Forgery (SSRF) in Actions CapabilityEPSS 0.3%CVE-2025-15606HIGHDenial of Service (DoS) in HTTPD Input Handling on TP-Link TD-W8961NEPSS 0.3%CVE-2026-13872CRITICALInsufficient validation of untrusted input in WebAppInstalls in Google Chrome on Android prior to 150.0.7871.47 allowed a local attacker to EPSS 0.3%CVE-2025-63783HIGHA Broken Object Level Authorization (BOLA) vulnerability was discovered in the tRPC project mutation APIs (update, delete, add/remove tag) oEPSS 0.3%CVE-2024-10302MEDIUMImproper Input Validation via Signup Process in Multiple WSO2 Products Enables Content Manipulation and Data ExposureEPSS 0.3%CVE-2026-53537LOWPython-Multipart: Content-Disposition parameter smuggling via RFC 2231/5987 extended parametersEPSS 0.3%CVE-2026-33471CRITICALnimiq-block has skip block quorum bypass via out-of-range BitSet indices & u16 truncationEPSS 0.3%