Fallos del tipo CWE-20

5439 resultados

Validação inadequada de entrada

A aplicação recebe dados de fontes externas (usuário, API, arquivo) sem verificar se estão no formato, tamanho ou tipo esperado antes de usá-los. Isso permite que um atacante envie dados malformados ou maliciosos que podem causar erros, corrupção de dados, execução de código ou acesso não autorizado.

Ejemplo

Um formulário que aceita um número de idade sem validar se é um inteiro positivo entre 0 e 150. Um atacante envia idade=-5 ou idade='DROP TABLE users;' via SQL, e o código processa isso diretamente no banco sem sanitização, causando dano.

Cómo mitigar

Valide TODA entrada externa: verificar tipo, tamanho, formato e intervalo permitido antes de usar. Use whitelists (aceitar apenas valores conhecidos como seguros) em vez de blacklists, e aplique sanitização ou prepared statements para dados que vão em queries. Testes de entrada fuzzing também ajudam a encontrar gaps.

CVE-2026-43935HIGHe107: Host Header Injection in e107 password reset enables phishingEPSS 0.5%CVE-2024-23669MEDIUMAn improper authorization in Fortinet FortiWebManager 7.2.0, FortiWebManager 7.0.0 through 7.0.4, FortiWebManager 6.3.0, FortiWebManager 6.2EPSS 0.5%CVE-2025-34123HIGHVideoCharge Studio 2.12.3.685 SEH Buffer Overflow via .VSC FileEPSS 0.5%CVE-2024-27912HIGHA denial of service vulnerability was reported in some Lenovo Printers that could allow an attacker to cause the device to crash by sending EPSS 0.5%CVE-2024-56321LOWGoCD can allow malicious GoCD admins to abuse backup configuration to gain additional host accessEPSS 0.5%CVE-2022-41921LOWDiscourse chat messages should have a maximum character limitEPSS 0.5%CVE-2025-55173MEDIUMNext.js Content Injection Vulnerability for Image OptimizationEPSS 0.5%CVE-2024-32992HIGHInsufficient verification vulnerability in the baseband module Impact: Successful exploitation of this vulnerability will affect availabilitEPSS 0.5%CVE-2021-33146MEDIUMImproper input validation in some Intel(R) Ethernet Adapters and Intel(R) Ethernet Controller I225 Manageability firmware may allow an unautEPSS 0.5%CVE-2026-16520HIGHImproper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians GeniaEPSS 0.5%CVE-2025-12275CRITICALMail Configuration File Manipulation + Command ExecutionEPSS 0.5%CVE-2026-78009HIGHFireware OS Out-of-Bounds Read in iked Allows Unauthenticated Denial of Service (DoS)EPSS 0.5%CVE-2018-4843MEDIUMA vulnerability has been identified in SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All EPSS 0.5%CVE-2025-2855MEDIUMelunez eladmin upload checkFile deserializationEPSS 0.5%CVE-2026-54588CRITICALPoweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.EPSS 0.5%CVE-2023-31161MEDIUMImproper Input Validation in Web InterfaceEPSS 0.5%CVE-2026-26062HIGHFleet server may terminate unexpectedly when handling certain gRPC requestsEPSS 0.5%CVE-2025-26358MEDIUMA CWE-15 "External Control of System or Configuration Setting" in ldbMT.so in Q-Free MaxTime less than or equal to version 2.11.0 allows an EPSS 0.5%CVE-2025-3413MEDIUMopplus springboot-admin SysGeneratorController.java code deserializationEPSS 0.5%CVE-2024-12994MEDIUMrunning-elephant Datart File Upload import extractModel deserializationEPSS 0.5%