Weaknesses of type CWE-20

5,455 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-2026-13024MEDIUMInsufficient validation of untrusted input in Navigation in Google Chrome prior to 149.0.7827.197 allowed a remote attacker who had compromiEPSS 0.2%CVE-2024-28240HIGHGLPI-Agent's MSI package installation permits local users to change Agent configurationEPSS 0.2%CVE-2025-14576HIGHPossible QML code injection in VectorImage componentEPSS 0.2%CVE-2024-47238HIGHDell Client Platform BIOS contains an Improper Input Validation vulnerability in an externally developed component. A high privileged attackEPSS 0.2%CVE-2023-39538HIGHFailure when uploading a Logo image fileEPSS 0.2%CVE-2026-9986MEDIUMInsufficient validation of untrusted input in OptimizationGuide in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had cEPSS 0.2%CVE-2024-56437MEDIUMVulnerability of input parameters not being verified in the widget framework module Impact: Successful exploitation of this vulnerability maEPSS 0.2%CVE-2024-21944MEDIUMImproper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a sysEPSS 0.2%CVE-2026-11151HIGHInsufficient validation of untrusted input in Password Manager in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had comEPSS 0.2%CVE-2026-11149HIGHInsufficient validation of untrusted input in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromisEPSS 0.2%CVE-2024-52579MEDIUMServer-Side Request Forgery vulnerability in various APIs in MisskeyEPSS 0.2%CVE-2022-20338LOWIn HierarchicalUri.readFrom of Uri.java, there is a possible way to craft a malformed Uri object due to improper input validation. This coulEPSS 0.2%CVE-2026-11239HIGHInappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the rendereEPSS 0.2%CVE-2025-59301MEDIUMModbus/TCP Dos Vulnerability in DVP15MC11TEPSS 0.2%CVE-2026-22204MEDIUMwpDiscuz before 7.6.47 - Unsanitized Cookie Email Used as wp_mail() RecipientEPSS 0.2%CVE-2026-7993MEDIUMInsufficient validation of untrusted input in Payments in Google Chrome on Android prior to 148.0.7778.96 allowed a remote attacker who had EPSS 0.2%CVE-2026-21501MEDIUMStack Overflow in iccDEV Calculator ParserEPSS 0.2%CVE-2026-11737MEDIUMSome NETGEAR Nighthawk devices allow administrators to tamper with the deviceEPSS 0.2%CVE-2026-21500MEDIUMStack Overflow in iccDEV XML Calculator Macro ExpansionEPSS 0.2%CVE-2026-7947MEDIUMInsufficient validation of untrusted input in Network in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised EPSS 0.2%