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-2023-22450HIGH In Advantech WebAccss/SCADA v9.1.3 and prior, there is an arbitrary file upload vulnerability that could allow an attacker to upload an AEPSS 0.8%CVE-2024-13091CRITICALWPBot Pro Wordpress Chatbot <= 13.5.4 - Unauthenticated Arbitrary File UploadEPSS 0.8%CVE-2026-7490HIGHSunnet｜CTMS and CPAS - Arbitrary File UploadEPSS 0.8%CVE-2024-12233MEDIUMcode-projects Online Notice Board Profile Picture registration.php unrestricted uploadEPSS 0.8%CVE-2024-4920MEDIUMSourceCodester Online Discussion Forum Site registerH.php unrestricted uploadEPSS 0.8%CVE-2022-2749MEDIUMSourceCodester Gym Management System unrestricted uploadEPSS 0.8%CVE-2023-30266HIGHCLTPHP <=6.0 is vulnerable to Unrestricted Upload of File with Dangerous Type.EPSS 0.8%CVE-2022-46839CRITICALWordPress JS Help Desk – Best Help Desk & Support Plugin Plugin <= 2.7.1 is vulnerable to Arbitrary File UploadEPSS 0.8%CVE-2024-42563CRITICALAn arbitrary file upload vulnerability in ERP commit 44bd04 allows attackers to execute arbitrary code via uploading a crafted HTML file.EPSS 0.8%CVE-2011-10041CRITICALUploadify <= 1.0 Unauthenticated Arbitrary File UploadEPSS 0.8%CVE-2023-39377HIGH SiberianCMS - CWE-434: Unrestricted Upload of File with Dangerous Type - A malicious user with administrative privileges may be able to upload a dangerous filetype via an unspecified methodEPSS 0.8%CVE-2024-34440CRITICALWordPress AI Engine plugin <= 2.2.63 - Auth. Arbitrary File Upload vulnerabilityEPSS 0.8%CVE-2025-6002HIGHVirtueMart - Unrestricted File UploadEPSS 0.8%CVE-2024-2754MEDIUMSourceCodester Complete E-Commerce Site users_photo.php unrestricted uploadEPSS 0.8%CVE-2024-29859CRITICALIn MISP before 2.4.187, add_misp_export in app/Controller/EventsController.php does not properly check for a valid file upload.EPSS 0.8%CVE-2023-5277MEDIUMSourceCodester Engineers Online Portal student_avatar.php unrestricted uploadEPSS 0.8%CVE-2022-43979MEDIUMPath Traversal leading to Local File InclusionEPSS 0.8%CVE-2023-29375CRITICALAn issue was discovered in Progress Sitefinity 13.3 before 13.3.7647, 14.0 before 14.0.7736, 14.1 before 14.1.7826, 14.2 before 14.2.7930, aEPSS 0.8%CVE-2020-37090HIGHSchool ERP Pro 1.0 - Remote Code ExecutionEPSS 0.8%CVE-2026-80233HIGHCAYIN Technology｜CAYIN CMS-WS/CMS-SE/SMP - Arbitrary File UploadEPSS 0.8%