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-2025-5746CRITICALDrag and Drop Multiple File Upload (Pro) - WooCommerce <= 1.7.1 and 5.0 - 5.0.5 - Unauthenticated Arbitrary File UploadEPSS 0.7%CVE-2022-2740MEDIUMSourceCodester Company Website CMS Add Blog add-blog.php unrestricted uploadEPSS 0.7%CVE-2023-26690HIGHFile Upload vulnerability in CS-Cart MultiVendor 4.16.1 allows remote attackers to run arbitrary code via File Manager/Editor component in tEPSS 0.7%CVE-2022-2736MEDIUMSourceCodester Company Website CMS Background Upload Logo Icon updatelogo.php unrestricted uploadEPSS 0.7%CVE-2022-2751MEDIUMSourceCodester Company Website CMS add-portfolio.php unrestricted uploadEPSS 0.7%CVE-2022-2750MEDIUMSourceCodester Company Website CMS Add Service add-service.php unrestricted uploadEPSS 0.7%CVE-2023-47711LOWIBM Security Guardium denial of serviceEPSS 0.7%CVE-2024-51364HIGHAn arbitrary file upload vulnerability in ModbusMechanic v3.0 allows attackers to execute arbitrary code via uploading a crafted .xml file.EPSS 0.7%CVE-2024-10994MEDIUMCodezips Online Institute Management System edit_user.php unrestricted uploadEPSS 0.7%CVE-2023-52154HIGHFile Upload vulnerability in pmb/camera_upload.php in PMB 7.4.7 and earlier allows attackers to run arbitrary code via upload of crafted PHTEPSS 0.7%CVE-2022-2872LOWUnrestricted Upload of File with Dangerous Type in octoprint/octoprintEPSS 0.7%CVE-2023-40784CRITICALDedeCMS 5.7.102 has a File Upload vulnerability via uploads/dede/module_make.php.EPSS 0.7%CVE-2019-25296CRITICALWP Cost Estimation <= 9.642 - Missing Authorization to Arbitrary File Upload/DeleteEPSS 0.7%CVE-2024-2890CRITICALWordPress Tumult Hype Animations plugin <= 1.9.12 - Arbitrary File Upload vulnerabilityEPSS 0.7%CVE-2026-41587HIGHCI4MS: Unrestricted PHP File Upload via Theme Installation Leads to Authenticated Remote Code ExecutionEPSS 0.7%CVE-2024-27283HIGHA vulnerability was discovered in Veritas eDiscovery Platform before 10.2.5. The application administrator can upload potentially malicious EPSS 0.7%CVE-2025-54071CRITICALRomM's authenticated arbitrary file write vulnerability can lead to Remote Code ExecutionEPSS 0.7%CVE-2024-56975CRITICALInvoicePlane (all versions tested as of December 2024) v.1.6.11 and before contains a remote code execution vulnerability in the upload_fileEPSS 0.7%CVE-2024-8166MEDIUMRuijie EG2000K index.php unrestricted uploadEPSS 0.7%CVE-2025-4561HIGHKinfor KFOX - Arbitrary File UploadEPSS 0.7%