Fallos del tipo CWE-434

3091 resultados

Upload irrestrito de arquivo com tipo perigoso

Ocorre quando a aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos. O risco é grave: o arquivo pode ser armazenado em local acessível pela web, executado pelo servidor, ou baixado e executado pela vítima.

Ejemplo

Um formulário de perfil aceita qualquer arquivo como 'foto', sem verificação. Alguém faz upload de um .exe ou .php; se salvo em pasta pública e com permissões erradas, o arquivo pode ser executado pelo servidor ou baixado por outros usuários.

Cómo mitigar

Valide a extensão e o tipo MIME no servidor (nunca apenas no cliente), rejeite extensões perigosas explicitamente, armazene uploads fora da raiz web ou sem permissão de execução, e considere renomear arquivos removendo extensão original. Idealmente, converta imagens para formatos seguros (PNG/JPG) após upload.

CVE-2024-5278MEDIUMUnrestricted File Upload leading to RCE in gaizhenbiao/chuanhuchatgptEPSS 0.6%CVE-2021-47937HIGHe107 CMS 2.3.0 Authenticated Remote Code Execution via Theme UploadEPSS 0.6%CVE-2026-63227CRITICALUnrestricted SCORM file upload vulnerabilityEPSS 0.6%CVE-2025-6079HIGHSchool Management System <= 93.2.0 - Authenticated (Student+) Arbitrary File UploadEPSS 0.6%CVE-2023-7212MEDIUMDeDeCMS Backend file_class.php unrestricted uploadEPSS 0.6%CVE-2023-25402HIGHCleverStupidDog yf-exam 1.8.0 is vulnerable to File Upload. There is no restriction on the suffix of the uploaded file, resulting in any filEPSS 0.6%CVE-2025-41735HIGHPossible arbitrary file uploadEPSS 0.6%CVE-2024-11122MEDIUM上海灵当信息科技有限公司 Lingdang CRM index.php unrestricted uploadEPSS 0.6%CVE-2025-50002CRITICALWordPress Energia theme <= 1.1.2 - Arbitrary File Upload vulnerabilityEPSS 0.6%CVE-2025-12968HIGHInfility Global <= 2.14.42 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 0.6%CVE-2024-51548HIGHDangerous File UploadEPSS 0.6%CVE-2025-8120CRITICALRemote Code Execution via Unrestricted File Upload in PAD CMSEPSS 0.6%CVE-2024-7917MEDIUMDouPHP Favicon system.php unrestricted uploadEPSS 0.6%CVE-2025-22137CRITICALArbitrary File Overwrite via HTTP POST in Pingvin ShareEPSS 0.6%CVE-2024-46441HIGHAn arbitrary file upload vulnerability in YPay 1.2.0 allows attackers to execute arbitrary code via a ZIP archive to themePutFile in app/comEPSS 0.6%CVE-2025-3565MEDIUMhuanfenz/code-projects StudentManager Announcement Management Section uploadArticle.do unrestricted uploadEPSS 0.6%CVE-2024-25410MEDIUMflusity-CMS 2.33 is vulnerable to Unrestricted Upload of File with Dangerous Type in update_setting.php.EPSS 0.6%CVE-2022-29451HIGHWordPress Rara One Click Demo Import plugin <= 1.2.9 - Cross-Site Request Forgery (CSRF) leads to Arbitrary File Upload vulnerabilityEPSS 0.6%CVE-2024-6945MEDIUMFlute CMS Avatar Upload Page ImagesController.php unrestricted uploadEPSS 0.6%CVE-2024-56054CRITICALWordPress WPLMS plugin < 1.9.9.5.2 - Instructor+ Arbitrary File Upload vulnerabilityEPSS 0.6%