Weaknesses of type CWE-20

5,462 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-2022-20459MEDIUMIn (TBD) of (TBD), there is a possible way to redirect code execution due to improper input validation. This could lead to local escalation EPSS 0.1%CVE-2022-33729MEDIUMImproper restriction of broadcasting Intent in ConfirmConnectActivity of?NFC prior to SMR Aug-2022 Release 1 leaks MAC address of the connecEPSS 0.1%CVE-2026-56950MEDIUMIn validate_ns_buf of mbu_class.rs, there is a possible information disclosure due to improper input validation. This could lead to local inEPSS 0.1%CVE-2026-0018MEDIUMIn multiple functions of AccessibilityManagerService.java, there is a possible persistent denial of service due to improper input validationEPSS 0.1%CVE-2023-20645MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20651MEDIUMIn apu, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20648MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20647MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20644MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20649MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2023-20646MEDIUMIn ril, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System exEPSS 0.1%CVE-2026-21112MEDIUMImproper input validation in Samsung Tips prior to Android 17 allows local attackers to launch arbitrary activity with Samsung Tips privilegEPSS 0.1%CVE-2025-68970MEDIUMPermission verification bypass vulnerability in the media library module. Impact: Successful exploitation of this vulnerability may affect sEPSS 0.1%CVE-2024-20064HIGHIn wlan service, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege EPSS 0.1%CVE-2026-28638LOWIn multiple functions of XmpDataParser.java, there is a possible improper data sanitization due to a logic error in the code. This could leaEPSS 0.1%CVE-2025-48537HIGHIn multiple locations, there is a possible way to persistently DoS the device due to improper input validation. This could lead to local infEPSS 0.1%CVE-2026-45525LOWIn multiple locations, there is a possible improper data sanitization due to a logic error in the code. This could lead to local informationEPSS 0.1%CVE-2024-20056MEDIUMIn preloader, there is a possible escalation of privilege due to an insecure default value. This could lead to local escalation of privilegeEPSS 0.1%CVE-2026-11297HIGHInsufficient validation of untrusted input in Reader Mode in Google Chrome on Android prior to 149.0.7827.53 allowed a local attacker to bypEPSS 0.1%CVE-2025-36929MEDIUMIn AreFencesRegistered of gxp_fence_manager.cc, there is a possible information leak due to improper input validation. This could lead to loEPSS 0.1%