Weaknesses of type CWE-20

5,453 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-2023-33104HIGHImproper input Validation in Multi-Mode Call ProcessorEPSS 0.3%CVE-2026-7967HIGHInsufficient validation of untrusted input in Navigation in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromisEPSS 0.3%CVE-2026-14412HIGHInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 150.0.7871.46 allowed a remote attacker who had compromised thEPSS 0.3%CVE-2025-24299HIGHImproper input validation for some Intel(R) CIP software before version WIN_DCA_2.4.0.11001 within Ring 3: User Applications may allow an esEPSS 0.3%CVE-2026-8007HIGHInsufficient validation of untrusted input in Cast in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised theEPSS 0.3%CVE-2020-3477MEDIUMCisco IOS and IOS XE Software Information Disclosure VulnerabilityEPSS 0.3%CVE-2026-15122HIGHInsufficient validation of untrusted input in Codecs in Google Chrome on Windows prior to 150.0.7871.115 allowed a remote attacker who had cEPSS 0.3%CVE-2023-33100HIGHImproper input validation in Multi-Mode Call ProcessorEPSS 0.3%CVE-2025-3162MEDIUMInternLM LMDeploy PT File utils.py load_weight_ckpt deserializationEPSS 0.3%CVE-2026-17660HIGHInsufficient validation of untrusted input in Network in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised EPSS 0.3%CVE-2020-1682MEDIUMJunos OS: SRX1500, vSRX, SRX4K, NFX150, NFX250: Denial of service vulnerability executing local CLI commandEPSS 0.3%CVE-2026-17663HIGHInsufficient validation of untrusted input in GPU in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker who had comprEPSS 0.3%CVE-2026-19177HIGHInsufficient validation of untrusted input in UI in Google Chrome prior to 151.0.7922.109 allowed a remote attacker who had compromised the EPSS 0.3%CVE-2026-13834HIGHInsufficient validation of untrusted input in ANGLE in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised thEPSS 0.3%CVE-2025-59886HIGHImproper input validation at one of the endpoints of Eaton xComfort ECI's web interface, could lead into an attacker with network access tEPSS 0.3%CVE-2026-9880HIGHInsufficient validation of untrusted input in WebGL in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised tEPSS 0.3%CVE-2025-15358HIGHDVP-12SE11T - Denial of Service VulnerabilityEPSS 0.3%CVE-2020-1619MEDIUMJunos OS: QFX10K Series, EX9200 Series, MX Series, PTX Series: Privilege escalation vulnerability in NG-RE.EPSS 0.3%CVE-2025-15117LOWDromara Sa-Token SaJdkSerializer.java ObjectInputStream.readObject deserializationEPSS 0.3%CVE-2023-32480MEDIUM Dell BIOS contains an Improper Input Validation vulnerability. An unauthenticated physical attacker may potentially exploit this vulnerabilEPSS 0.3%