Weaknesses of type CWE-20

5,887 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-2026-26121HIGHAzure IOT Explorer Spoofing VulnerabilityEPSS 1.2%CVE-2017-1002153—Koji 1.13.0 does not properly validate SCM paths, allowing an attacker to work around blacklisted paths for build submission.EPSS 1.2%CVE-2018-15632HIGHImproper input validation in database creation logic in Odoo Community 11.0 and earlier and Odoo Enterprise 11.0 and earlier, allows remote EPSS 1.2%CVE-2021-25745HIGHIngress-nginx path can be pointed to service account token fileEPSS 1.2%CVE-2023-28330MEDIUMMoodle: authenticated arbitrary file read through malformed backup fileEPSS 1.2%CVE-2026-88064HIGHBackstage: Improper input validation in TechDocs MkDocs configurationEPSS 1.2%CVE-2020-7823HIGHDaviewIndy Multiple VulnerabilitiesEPSS 1.2%CVE-2024-31867MEDIUMApache Zeppelin: LDAP search filter query Injection VulnerabilityEPSS 1.2%CVE-2023-6879CRITICALheap buffer overflow in libaomEPSS 1.2%CVE-2024-29831HIGHApache DolphinScheduler: RCE by arbitrary js executionEPSS 1.2%CVE-2022-24711CRITICALRemote CLI Command Execution Vulnerability in CodeIgniter4EPSS 1.2%CVE-2024-8755HIGHImproper Input Validation vulnerability of Authenticated User in Progress LoadMaster allows : OS Command Injection.EPSS 1.2%CVE-2017-12297—A vulnerability in Cisco WebEx Meeting Center could allow an authenticated, remote attacker to initiate connections to arbitrary hosts, aka EPSS 1.2%CVE-2020-7803HIGHZoneplayer ActiveX File Download VulnerabilityEPSS 1.2%CVE-2020-7822HIGHDaviewIndy Multiple VulnerabilitiesEPSS 1.2%CVE-2023-22460HIGHgo-ipld-prime json codec may panic if asked to encode bytesEPSS 1.2%CVE-2024-40518HIGHSeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is caused by admin_weixin.php directly splicing and writing the useEPSS 1.2%CVE-2020-25151—The affected product does not properly validate input, which may allow an attacker to execute a denial-of-service attack on the NIO 50 (all EPSS 1.2%CVE-2022-3095CRITICALIncorrect parsing of the backslash characters in Dart libraryEPSS 1.2%CVE-2023-29335HIGHMicrosoft Word Security Feature Bypass VulnerabilityEPSS 1.2%