Falhas do tipo CWE-434

3.098 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-2024-40691HIGHIBM Cognos Controller file uploadEPSS 0.4%CVE-2026-81090HIGHGpx2Graphics <= 0.3 - Arbitrary File Upload via CSRFEPSS 0.4%CVE-2025-8174MEDIUMcode-projects Voting System candidates_add.php unrestricted uploadEPSS 0.4%CVE-2026-28133HIGHWordPress Filr plugin <= 1.2.14 - Arbitrary File Upload vulnerabilityEPSS 0.4%CVE-2025-15448MEDIUMcld378632668 JavaMall MinioController.java upload unrestricted uploadEPSS 0.4%CVE-2025-30933CRITICALWordPress LogisticsHub theme <= 1.1.6 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2025-49414CRITICALWordPress FW Gallery plugin <= 8.0.0 - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2024-9417MEDIUMHash Form - Drag & Drop Form Builder <= 1.1.9 - Unauthenticated Limited File UploadEPSS 0.4%CVE-2019-25582HIGHi-doit CMDB 1.12 Arbitrary File Download via file_manager ParameterEPSS 0.4%CVE-2022-33859HIGHUnrestricted file upload in Eaton Foreseer EPMSEPSS 0.4%CVE-2025-31100CRITICALWordPress School Management Plugin <= 1.93.1 (02-07-2025) - Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2025-23213HIGHTandoor Recipes - Stored XSS through Unrestricted File UploadEPSS 0.4%CVE-2025-20375MEDIUMCisco Unified Contact Center Express Arbitrary File Upload VulnerabilityEPSS 0.4%CVE-2023-35018LOWIBM Security Verify Governance file uploadEPSS 0.4%CVE-2026-85186MEDIUMitsourcecode Online Medicine Delivery System Customer Controller controller.php doupdateimage unrestricted uploadEPSS 0.4%CVE-2026-77681MEDIUMCodeAstro Online Job Portal update-profile.php unrestricted uploadEPSS 0.4%CVE-2026-14776MEDIUMSourceCodester Onlne Examination & Learning Management System Filename Extension upload_files.php pathinfo unrestricted uploadEPSS 0.4%CVE-2026-85135MEDIUMILIAS MediaPool ZipAdapter.php uploadMultipleSubtitleFileObject unrestricted uploadEPSS 0.4%CVE-2026-90519MEDIUMPHPGurukul Bank Locker Management System add-locker-form.php unrestricted uploadEPSS 0.4%CVE-2026-14698MEDIUMSourceCodester Syllabus-Aligned Learning Management and Examination System upload_files.php unrestricted uploadEPSS 0.4%