Falhas do tipo CWE-434

3.086 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-2025-3917CRITICAL百度站长SEO合集(支持百度/神马/Bing/头条推送) <= 2.0.6 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2023-43226HIGHAn arbitrary file upload vulnerability in dede/baidunews.php in DedeCMS 5.7.111 and earlier allows attackers to execute arbitrary code via uEPSS 0.9%CVE-2023-6133MEDIUMForminator <= 1.27.0 - Authenticated (Administrator+) Arbitrary File UploadEPSS 0.9%CVE-2026-67688CRITICALICS-Park Smart Park Management System v2.0 contains an unrestricted file upload vulnerability in the file upload module. This allows a remotEPSS 0.9%CVE-2026-67678CRITICALFile Upload vulnerability in RainyGao-Hithub DocSys v.2.02.80 allows a remote attacker to execute arbitrary codeEPSS 0.9%CVE-2026-50894CRITICALeasyadmin v2.0.2.2 is vulnerable to Unrestricted Upload of File with Dangerous Type in the background management interface which allows authEPSS 0.9%CVE-2024-4500MEDIUMSourceCodester Prison Management System edit-photo.php unrestricted uploadEPSS 0.9%CVE-2024-1644CRITICALSuite CRM v7.14.2 - RCE via Local File InclusionEPSS 0.9%CVE-2024-3948MEDIUMSourceCodester Home Clean Service System Photo student.add.php unrestricted uploadEPSS 0.9%CVE-2026-28673HIGHxiaoheiFS Vulnerable to RCE via Unrestricted Plugin Installation (Manifest Manipulation)EPSS 0.9%CVE-2023-1684MEDIUMHadSky unrestricted uploadEPSS 0.9%CVE-2024-1875MEDIUMSourceCodester Complaint Management System Lodge Complaint Section register-complaint.php unrestricted uploadEPSS 0.9%CVE-2024-3229CRITICALSalon Booking System <= 10.2 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-10801CRITICALWordPress User Extra Fields <= 16.5 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-10627CRITICALWooCommerce Support Ticket System <= 17.7 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-9108CRITICALWechat Social login <= 1.3.0 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-57408HIGHAn arbitrary file upload vulnerability in the component /comm/upload of cool-admin-java v1.0 allows attackers to execute arbitrary code via EPSS 0.9%CVE-2024-10547CRITICALWP Membership <= 1.6.2 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2022-0960CRITICALStored XSS viva .properties file upload in star7th/showdocEPSS 0.9%CVE-2023-53868HIGHCoppermine Gallery 1.6.25 Remote Code Execution via Plugin UploadEPSS 0.9%