Falhas do tipo CWE-434

3.091 resultados

Upload irrestrito de arquivo com tipo perigoso

A aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos que serão armazenados ou executados no servidor. O risco aumenta se o arquivo for salvo em diretório acessível pela web ou em local onde será processado automaticamente.

Exemplo

Um sistema de upload de 'fotos de perfil' verifica apenas o tamanho do arquivo, mas não valida a extensão. Um atacante envia um arquivo .php disfarçado de imagem; se salvo em /uploads/ acessível via web, ele consegue executar código PHP no servidor ao acessar a URL direta.

Como mitigar

Valide extensões contra uma lista branca (whitelist) de tipos permitidos, verifique a assinatura do arquivo (magic bytes) e não confie apenas no Content-Type do cliente. Armazene uploads fora do diretório web ou configure o servidor para não executar scripts no diretório de uploads.

CVE-2014-0468CRITICALVulnerability in fusionforge in the shipped Apache configuration, where the web server may execute scripts that the users would have uploadEPSS 0.5%CVE-2024-40744CRITICALExtension - tassos.gr - Unrestricted file upload in Convert Forms component for Joomla < 4.4.8EPSS 0.5%CVE-2025-65783CRITICALAn arbitrary file upload vulnerability in the /utils/uploadFile component of Hubert Imoveis e Administracao Ltda Hub v2.0 1.27.3 allows attaEPSS 0.5%CVE-2025-56515HIGHFile upload vulnerability in Fiora chat application 1.0.0 through user avatar upload functionality. The application fails to validate SVG fiEPSS 0.5%CVE-2026-25200CRITICALA vulnerability in MagicInfo9 Server allows authorized users to upload HTML files without authentication, leading to Stored XSS, which can rEPSS 0.5%CVE-2025-6843MEDIUMcode-projects Simple Photo Gallery upload-photo.php unrestricted uploadEPSS 0.5%CVE-2025-26872CRITICALWordPress Eximius theme <= 2.2 - Arbitrary File Upload vulnerabilityEPSS 0.5%CVE-2025-2973MEDIUMcode-projects College Management System student.php unrestricted uploadEPSS 0.5%CVE-2024-34990CRITICALIn the module "Help Desk - Customer Support Management System" (helpdesk) up to version 2.4.0 from FME Modules for PrestaShop, a customer caEPSS 0.5%CVE-2023-53869HIGHWEBIGniter 28.7.23 Unrestricted File Upload Remote Code ExecutionEPSS 0.5%CVE-2026-86272MEDIUMBeijing Meite Software Technology U+Smart Enjoyment WebSite UploadFormImg.ashx unrestricted uploadEPSS 0.5%CVE-2026-4220MEDIUMTechnologies Integrated Management Platform SetWebpagePic.jsp unrestricted uploadEPSS 0.5%CVE-2024-8463CRITICALFile upload restriction bypass vulnerability in Job PortalEPSS 0.5%CVE-2025-7878MEDIUMMetasoft 美特软件 MetaCRM upload2.jsp unrestricted uploadEPSS 0.5%CVE-2025-0213MEDIUMCampcodes Project Management System update_forms.php unrestricted uploadEPSS 0.5%CVE-2024-0192MEDIUMRRJ Nueva Ecija Engineer Online Portal Add Downloadable downloadable.php unrestricted uploadEPSS 0.5%CVE-2023-7054MEDIUMPHPGurukul Online Notes Sharing System add-notes.php unrestricted uploadEPSS 0.5%CVE-2024-49314CRITICALWordPress JiangQie Free Mini Program plugin <= 2.5.2 - Arbitrary File Upload vulnerabilityEPSS 0.5%CVE-2024-50525CRITICALWordPress Helloprint plugin <= 2.0.4 - Arbitrary File Upload vulnerabilityEPSS 0.5%CVE-2024-49291CRITICALWordPress Cooked Pro plugin < 1.8.0 - Unauthenticated Arbitrary File Upload vulnerabilityEPSS 0.5%