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-2024-45171HIGHAn issue was discovered in za-internet C-MOR Video Surveillance 5.2401. Due to improper user input validation, it is possible to upload dangEPSS 0.9%CVE-2024-1527CRITICALUnrestricted Upload of File with Dangerous Type in CMS Made SimpleEPSS 0.9%CVE-2025-25784CRITICALAn arbitrary file upload vulnerability in the component \c\TemplateController.php of Jizhicms v2.5.4 allows attackers to execute arbitrary cEPSS 0.9%CVE-2022-41681CRITICALFile Upload vulnerability in Forma LMSEPSS 0.9%CVE-2022-42925CRITICALUnrestricted Upload of File with Dangerous Type in Forma LMSEPSS 0.9%CVE-2025-10041CRITICALFlex QR Code Generator <= 1.2.5 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-52429CRITICALWordPress WP Quick Setup plugin <= 2.0 - Arbitrary Plugin and Theme Installation to Remote Code Execution vulnerabilityEPSS 0.9%CVE-2025-70457CRITICALA Remote Code Execution (RCE) vulnerability exists in Sourcecodester Modern Image Gallery App v1.0 within the gallery/upload.php component. EPSS 0.9%CVE-2025-1355MEDIUMneedyamin Library Card System Add Picture signup.php unrestricted uploadEPSS 0.9%CVE-2025-67325CRITICALUnrestricted file upload in the hotel review feature in QloApps versions 1.7.0 and earlier allows remote unauthenticated attackers to achievEPSS 0.9%CVE-2024-3736MEDIUMcym1102 nginxWebUI upload unrestricted uploadEPSS 0.9%CVE-2024-23180HIGHImproper input validation vulnerability in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.7, Ver.3.0.x series versions prior to Ver.3EPSS 0.9%CVE-2023-40265HIGHAn issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows authenticated remote code exEPSS 0.9%CVE-2026-35573CRITICALChurchCRM has a Path traversal leads to RCEEPSS 0.9%CVE-2023-27397CRITICALUnrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload functionEPSS 0.9%CVE-2026-32931HIGHChamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCEEPSS 0.9%CVE-2024-37847CRITICALAn arbitrary file upload vulnerability in MangoOS before 5.1.4 and Mango API before 4.5.5 allows attackers to execute arbitrary code via a cEPSS 0.9%CVE-2026-87935HIGHPaid Downloads <= 3.15 - Unauthenticated Arbitrary File Upload via 'paiddownloads_update_file' ActionEPSS 0.9%CVE-2024-2381HIGHAliExpress Dropshipping with AliNext Lite <= 3.3.5 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 0.9%CVE-2024-3436MEDIUMSourceCodester Prison Management System Avatar edit-photo.php unrestricted uploadEPSS 0.9%