Weaknesses of type CWE-20

5,421 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-2026-24713CRITICALApache IoTDB: JEXL Expression Injection VulnerabilityEPSS 0.7%CVE-2023-29410HIGH A CWE-20: Improper Input Validation vulnerability exists that could allow an authenticated attacker to gain the same privilege as the appliEPSS 0.7%CVE-2025-61809CRITICALColdFusion | Improper Input Validation (CWE-20)EPSS 0.7%CVE-2023-21494MEDIUMPotential buffer overflow vulnerability in auth api in mm_Authentication.c in Shannon baseband prior to SMR May-2023 Release 1 allows remoteEPSS 0.7%CVE-2023-22730MEDIUMImproper Input Validation of Clearance sale in cartEPSS 0.7%CVE-2026-46457HIGHApache Camel: Camel-NATS: Inbound NATS message headers are mapped into the Exchange without a configured HeaderFilterStrategy, allowing a client that can publish to the subject to inject Camel control headersEPSS 0.7%CVE-2025-66259CRITICALAuthenticated Root Remote Code Execution through improper filtering of HTTP post request parametersEPSS 0.7%CVE-2025-65946HIGHRoo Code is Vulnerable to Potential Remote Code Execution via zsh Command Validation BugEPSS 0.7%CVE-2020-3319LOWCisco Webex Network Recording Player and Cisco Webex Player Denial of Service VulnerabilityEPSS 0.7%CVE-2024-28103MEDIUMAction Pack is missing security headers on non-HTML responsesEPSS 0.7%CVE-2020-3322LOWCisco Webex Network Recording Player and Cisco Webex Player Denial of Service VulnerabilityEPSS 0.7%CVE-2026-23570MEDIUMLog timestamp tampering vulnerability in Content Distribution ServiceEPSS 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-2024-23668HIGHAn improper authorization in Fortinet FortiWebManager 7.2.0, FortiWebManager 7.0.0 through 7.0.4, FortiWebManager 6.3.0, FortiWebManager 6.2EPSS 0.7%CVE-2026-42588HIGHApache ActiveMQ Broker, Apache ActiveMQ All, Apache ActiveMQ: Remote Code Execution via Jolokia addNetworkConnectorEPSS 0.7%CVE-2023-20192CRITICALCisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation VulnerabilitiesEPSS 0.7%CVE-2022-40237MEDIUMIBM MQ for HPE NonStop denial of serviceEPSS 0.7%CVE-2023-32037MEDIUMWindows Layer-2 Bridge Network Driver Information Disclosure VulnerabilityEPSS 0.7%CVE-2022-32238—When a user opens manipulated Encapsulated Post Script (.eps, ai.x3d) files received from untrusted sources in SAP 3D Visual Enterprise ViewEPSS 0.7%CVE-2022-32242—When a user opens manipulated Radiance Picture (.hdr, hdr.x3d) files received from untrusted sources in SAP 3D Visual Enterprise Viewer, theEPSS 0.7%