Fallos del tipo CWE-434

3097 resultados

Upload irrestrito de arquivo com tipo perigoso

Ocorre quando a aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos. O risco é grave: o arquivo pode ser armazenado em local acessível pela web, executado pelo servidor, ou baixado e executado pela vítima.

Ejemplo

Um formulário de perfil aceita qualquer arquivo como 'foto', sem verificação. Alguém faz upload de um .exe ou .php; se salvo em pasta pública e com permissões erradas, o arquivo pode ser executado pelo servidor ou baixado por outros usuários.

Cómo mitigar

Valide a extensão e o tipo MIME no servidor (nunca apenas no cliente), rejeite extensões perigosas explicitamente, armazene uploads fora da raiz web ou sem permissão de execução, e considere renomear arquivos removendo extensão original. Idealmente, converta imagens para formatos seguros (PNG/JPG) após upload.

CVE-2026-34031MEDIUMApache Answer: The custom avatar was not properly validatedEPSS 0.6%CVE-2024-1261MEDIUMJuanpao JPShop API ComboController.php actionIndex unrestricted uploadEPSS 0.6%CVE-2026-39931HIGHOpenEMR Authenticated SQL Injection via backup.php Import FeatureEPSS 0.6%CVE-2023-7150MEDIUMCampcodes Chic Beauty Salon Product product-list.php unrestricted uploadEPSS 0.6%CVE-2025-68001CRITICALWordPress g-FFL Checkout plugin <= 2.1.0 - Arbitrary File Upload vulnerabilityEPSS 0.6%CVE-2024-6958MEDIUMitsourcecode University Management System Avatar File st_update.php unrestricted uploadEPSS 0.6%CVE-2022-0950MEDIUMUnrestricted Upload of File with Dangerous Type in star7th/showdocEPSS 0.6%CVE-2024-1113MEDIUMopenBI Unity.php uploadUnity unrestricted uploadEPSS 0.6%CVE-2022-47186HIGHUnrestricted Upload of File vulnerability in Generex CS141EPSS 0.6%CVE-2023-5637HIGHPlaintext Storage of a Password in ArslanSoft's Education PortalEPSS 0.6%CVE-2024-7189MEDIUMitsourcecode Online Food Ordering System editproduct.php unrestricted uploadEPSS 0.6%CVE-2026-64960HIGHRemote Code Execution via Unrestricted File Upload in ATutorEPSS 0.6%CVE-2026-57311MEDIUMUnrestricted Upload of File with Dangerous Type in Windu CMSEPSS 0.6%CVE-2021-24620—Simple eCommerce <= 2.2.5 - Arbitrary File UploadEPSS 0.6%CVE-2025-56218CRITICALAn arbitrary file upload vulnerability in SigningHub v8.6.8 allows attackers to execute arbitrary code via uploading a crafted PDF file.EPSS 0.6%CVE-2026-82793HIGHUnrestricted upload of file with dangerous type issue exists in Contec CAN 2.0B Communication Wireless LAN / USB Converter Unit. If a speciaEPSS 0.6%CVE-2025-54449CRITICALUnrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affEPSS 0.6%CVE-2024-31115CRITICALWordPress Chauffeur Taxi Booking System for WordPress plugin <= 7.2 - Arbitrary File Upload vulnerabilityEPSS 0.6%CVE-2023-52221CRITICALWordPress Barcode Scanner with Inventory & Order Manager Plugin <= 1.5.1 is vulnerable to Arbitrary File UploadEPSS 0.6%CVE-2025-3040MEDIUMProject Worlds Online Time Table Generator add_student.php unrestricted uploadEPSS 0.6%