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-2024-58279HIGHappRain CMF 4.0.5 Authenticated Remote Code Execution via Filemanager UploadEPSS 1.0%CVE-2023-29625HIGHEmployee Performance Evaluation System v1.0 was discovered to contain an arbitrary file upload vulnerability which allows attackers to execuEPSS 1.0%CVE-2024-13714HIGHAll-Images.ai – IA Image Bank and Custom Image creation <= 1.0.4 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.0%CVE-2021-47758HIGHChikitsa Patient Management System 2.0.2 - Remote Code Execution (RCE) (Authenticated)EPSS 1.0%CVE-2023-3802MEDIUMChengdu Flash Flood Disaster Monitoring and Warning System Ajaxfileupload.ashx unrestricted uploadEPSS 1.0%CVE-2026-6147HIGHLightSync Pro <= 2.1.6 - Authenticated (Author+) Arbitrary File UploadEPSS 1.0%CVE-2026-14158HIGHWidget Logic Visual <= 1.52 - Authenticated (Subscriber+) Remote Code Execution via 'nwlv[cod-tag]' ParameterEPSS 1.0%CVE-2026-3533HIGHJupiterX Core <= 4.14.1 - Authenticated (Subscriber+) Missing Authorization To Limited File Upload via Popup Template ImportEPSS 1.0%CVE-2026-6518HIGHCMP – Coming Soon & Maintenance Plugin by NiteoThemes <= 4.1.16 - Missing Authorization to Authenticated (Administrator+) Arbitrary File Upload and Remote Code ExecutionEPSS 1.0%CVE-2016-20052CRITICALSnews CMS 1.7 Unrestricted File Upload via snews_filesEPSS 1.0%CVE-2026-32756HIGHAdmidio: Unrestricted File Upload via CSRF Token Validation Bypass in Documents & Files ModuleEPSS 1.0%CVE-2024-28269HIGHReCrystallize Server 5.10.0.0 allows administrators to upload files to the server. The file upload is not restricted, leading to the abilityEPSS 1.0%CVE-2023-26857HIGHAn arbitrary file upload vulnerability in /admin/ajax.php?action=save_uploads of Dynamic Transaction Queuing System v1.0 allows attackers toEPSS 0.9%CVE-2022-2046—Directorist - Business Directory Plugin < 7.2.3 - Admin+ Arbitrary File UploadEPSS 0.9%CVE-2024-5047MEDIUMSourceCodester Student Management System controller.php unrestricted uploadEPSS 0.9%CVE-2023-53980HIGHProjectSend r1605 Remote Code Execution via File Extension ManipulationEPSS 0.9%CVE-2024-8126HIGHAdvanced File Manager <= 5.2.8 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 0.9%CVE-2021-38397CRITICALHoneywell Experion PKS and ACE Controllers Unrestricted Upload of File with Dangerous TypeEPSS 0.9%CVE-2026-2550CRITICALEFM iptime A6004MX timepro.cgi commit_vpncli_file_upload unrestricted uploadEPSS 0.9%CVE-2024-31210HIGHPHP file upload bypass via Plugin installerEPSS 0.9%