Weaknesses of type CWE-20

5,450 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-2023-48634HIGHZDI-CAN-22175: Adobe After Effects AEP File Parsing Memory Corruption Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-3230LOWImproper key_share validation in TLS 1.3 HelloRetryRequestEPSS 0.4%CVE-2023-3770MEDIUMVulnerability in Ingeteam's INGEPAC DAEPSS 0.4%CVE-2023-44103—Out-of-bounds read vulnerability in the Bluetooth module.Successful exploitation of this vulnerability may affect service confidentiality.EPSS 0.4%CVE-2026-79376HIGHAn issue in the l2cap_handle_data() function of Bestechnic Co., Ltd BES2300 Bluetooth Audio SoC firmware v3.x and earlier allows attackers tEPSS 0.4%CVE-2019-1960MEDIUMCisco Enterprise NFV Infrastructure Software Arbitrary File Read VulnerabilitiesEPSS 0.4%CVE-2026-20255MEDIUMImproper Input Validation through Classic Dashboards in Splunk EnterpriseEPSS 0.4%CVE-2025-57834HIGHAn issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem (Exynos 980, 850, 990, 1080, 2100, 1280, 2200, 1330, 1380EPSS 0.4%CVE-2019-1959MEDIUMCisco Enterprise NFV Infrastructure Software Arbitrary File Read VulnerabilitiesEPSS 0.4%CVE-2026-26952MEDIUMPi-hole Web Interface has Stored HTML Injection via Local DNS Records (CNAME/Hosts) in data-tag AttributeEPSS 0.4%CVE-2026-73445MEDIUMSecurity Advisory 0167EPSS 0.4%CVE-2024-1638HIGHBluetooth characteristic LESC security requirement not enforced without additional flagsEPSS 0.4%CVE-2026-55306HIGHIn Cellular Modem, there is a possible denial of service due to improper input validation. This could lead to remote denial of service with EPSS 0.4%CVE-2023-54393HIGHPocketMine-MP before 4.20.5 Denial of Service via LoginPacketEPSS 0.4%CVE-2024-52590HIGHMissing validation allows spoofed profiles in MisskeyEPSS 0.4%CVE-2026-10938HIGHInappropriate implementation in Input in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer proEPSS 0.4%CVE-2023-3034MEDIUMReflected XSS in BKG Ntrip Professional Caster version <=2.0.44EPSS 0.4%CVE-2024-5969MEDIUMAIomatic - Automatic AI Content Writer <= 2.0.5 - Unauthenticated Arbitrary Email SendingEPSS 0.3%CVE-2025-10630MEDIUMRegex DoS in Grafana Zabbix PluginEPSS 0.3%CVE-2022-29204MEDIUMMissing validation causes denial of service in TensorFlow via `Conv3DBackpropFilterV2`EPSS 0.3%