Weaknesses of type CWE-20

5,888 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-2022-32248—Due to missing input validation in the Manage Checkbooks component of SAP S/4HANA - version 101, 102, 103, 104, 105, 106, an attacker could EPSS 0.7%CVE-2023-48223MEDIUMfast-jwt JWT Algorithm ConfusionEPSS 0.7%CVE-2026-61363HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.7%CVE-2026-59134HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.7%CVE-2024-26126LOWAdobe Experience Manager | Improper Input Validation (CWE-20)EPSS 0.7%CVE-2026-22872MEDIUMCapsule TenantResource RawItems Cluster-Scoped Resource Creation VulnerabilityEPSS 0.7%CVE-2024-25970MEDIUMDell PowerScale OneFS versions 8.2.x through 9.7.0.1 contains an improper input validation vulnerability. A low privileged remote attacker cEPSS 0.7%CVE-2025-31217MEDIUMThe issue was addressed with improved input validation. This issue is fixed in Safari 18.5, iOS 18.5 and iPadOS 18.5, iPadOS 17.7.7, macOS SEPSS 0.7%CVE-2023-38502MEDIUMTDengine Database Denial-of-ServiceEPSS 0.7%CVE-2024-3968HIGHRemote Code Execution vulnerability in the iManagerEPSS 0.7%CVE-2023-27484MEDIUMUnchecked fieldpath index in Composition's patches can lead to arbitrary memory allocation in crossplaneEPSS 0.7%CVE-2022-20952MEDIUMA vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance, formerly known as Cisco Web Security AppliEPSS 0.7%CVE-2026-85249MEDIUMApache Camel: Camel-Tika Header Injection via Unfiltered Document MetadataEPSS 0.7%CVE-2025-34226HIGHOpenPLC Runtime v3 Persistent DoSEPSS 0.7%CVE-2025-2690MEDIUMyiisoft Yii2 MockClass.php generate deserializationEPSS 0.7%CVE-2024-40642HIGHAbsent Input Validation in BinaryHttpParser in the netty incubator codec.bhttp EPSS 0.7%CVE-2025-47283CRITICALBypassing project secret validation can lead to privilege escalationEPSS 0.7%CVE-2026-105900HIGHColdFusion | Improper Input Validation (CWE-20)EPSS 0.7%CVE-2022-46401MEDIUMThe Microchip RN4870 module firmware 1.43 (and the Microchip PIC LightBlue Explorer Demo 4.2 DT100112) accepts PauseEncReqPlainText before pEPSS 0.7%CVE-2026-39998MEDIUMApache APISIX: Identity Injection via forward-auth Plugin Missing Header CleanupEPSS 0.7%