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-2025-63601CRITICALSnipe-IT before version 8.3.3 contains a remote code execution vulnerability that allows an authenticated attacker to upload a malicious bacEPSS 0.6%CVE-2023-7147MEDIUMgopeak MasterLab User.php base64ImageContent unrestricted uploadEPSS 0.6%CVE-2025-32206CRITICALWordPress Processing Projects Plugin <= 1.0.2 - Arbitrary File Upload vulnerabilityEPSS 0.6%CVE-2011-10004MEDIUMreciply Plugin uploadImage.php unrestricted uploadEPSS 0.6%CVE-2026-46400HIGHHAXCMS PHP has a File Upload Validation BypassEPSS 0.6%CVE-2022-45377MEDIUMWordPress Drag and Drop Multiple File Upload for WooCommerce Plugin <= 1.0.8 is vulnerable to Multiple VulnerabilitiesEPSS 0.6%CVE-2026-0911HIGHHustle <= 7.8.9.2 - Authenticated (Subscriber+) Arbitrary File Upoload via Module ImportEPSS 0.6%CVE-2025-61417HIGHCross-Site Scripting (XSS) vulnerability exists in TastyIgniter 3.7.7, affecting the /admin/media_manager component. Attackers can upload a EPSS 0.6%CVE-2025-56265HIGHAn arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3, v1.100.1, and v1.101.1 allows attackers to execute arbiEPSS 0.6%CVE-2021-47965CRITICALWordPress Plugin WP Super Edit 2.5.4 Unrestricted File UploadEPSS 0.6%CVE-2025-54448CRITICALUnrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affEPSS 0.6%CVE-2023-42472HIGHInsufficient File type validation in SAP BusinessObjects Business Intelligence Platform (Web Intelligence HTML interface)EPSS 0.6%CVE-2025-54444CRITICALUnrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affEPSS 0.6%CVE-2024-1925MEDIUMCtcms Upsys.php unrestricted uploadEPSS 0.6%CVE-2021-4096HIGHFancy Product Designer <= 4.7.5 - Cross-Site Request Forgery to Arbitrary File UploadEPSS 0.6%CVE-2024-7495MEDIUMitsourcecode Laravel Accounting System HomeController.php unrestricted uploadEPSS 0.6%CVE-2023-4988MEDIUMBettershop LaikeTui unrestricted uploadEPSS 0.6%CVE-2024-44220MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.2, macOS Sonoma 14.7.2. Parsing a maliciouslyEPSS 0.6%CVE-2025-11724HIGHEM Beer Manager <= 3.2.3 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 0.6%CVE-2025-8323HIGHVentem｜e-School - Arbitrary File UploadEPSS 0.6%