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-2025-5173MEDIUMHumanSignal label-studio-ml-backend PT File neural_nets.py load deserializationEPSS 0.2%CVE-2023-25951MEDIUMImproper input validation for some Intel(R) PROSet/Wireless and Intel(R) Killer(TM) Wi-Fi software before version 22.240 may allow a privileEPSS 0.2%CVE-2025-69279HIGHIn nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additionEPSS 0.2%CVE-2025-69278HIGHIn nr modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service with no additionEPSS 0.2%CVE-2021-25509MEDIUMA missing input validation in Samsung Flow Windows application prior to Version 4.8.5.0 allows attackers to overwrite abtraty file in the WiEPSS 0.2%CVE-2025-61084HIGHMDaemon Mail Server 23.5.2 validates SPF, DKIM, and DMARC using the email enclosed in angle brackets (<>) in the From: header of SMTP DATA. EPSS 0.2%CVE-2024-28977LOWDell Repository Manager, versions 3.4.2 through 3.4.4,contains a Path Traversal vulnerability in logger module. A local attacker with low prEPSS 0.2%CVE-2026-6777MEDIUMOther issue in the Networking: DNS componentEPSS 0.2%CVE-2026-12025MEDIUMInsufficient validation of untrusted input in Network in Google Chrome prior to 149.0.7827.115 allowed a remote attacker who had compromisedEPSS 0.2%CVE-2024-10846MEDIUMExcessive Platform Resource Consumption within a Loop when unmarshalling Compose file having recursive loopEPSS 0.2%CVE-2026-42301HIGHImproper Input Validation leading to Improper Control of Generation of Code ('Code Injection') in pyp2specEPSS 0.2%CVE-2022-33945HIGHImproper input validation in some Intel(R) Server board and Intel(R) Server System BIOS firmware may allow a privileged user to potentially EPSS 0.2%CVE-2026-14137MEDIUMInsufficient validation of untrusted input in Chrome for iOS in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker who coEPSS 0.2%CVE-2022-36853LOWIntent redirection in Photo Editor prior to SMR Sep-2022 Release 1 allows attacker to get sensitive information.EPSS 0.2%CVE-2026-18009MEDIUMInsufficient validation of untrusted input in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform UI spooEPSS 0.2%CVE-2026-100833HIGHContrast before 1.23.1 Image Substitution via Policy GenerationEPSS 0.2%CVE-2026-17939MEDIUMInsufficient validation of untrusted input in Passwords in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform UI spooEPSS 0.2%CVE-2023-42012MEDIUMIBM UrbanCode Deploy denial of serviceEPSS 0.2%CVE-2023-21473MEDIUMImproper input validation with Exynos Fastboot USB Interface prior to SMR Apr-2023 Release 1 allows a physical attacker to execute arbitraryEPSS 0.2%CVE-2023-21472MEDIUMImproper input validation with Exynos Fastboot USB Interface prior to SMR Apr-2023 Release 1 allows a physical attacker to execute arbitraryEPSS 0.2%