Fallos del tipo CWE-434

3255 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-2020-11011CRITICALRCE via file upload in PhprojectEPSS 1.9%CVE-2023-51444HIGHGeoServer arbitrary file upload vulnerability in REST Coverage Store APIEPSS 1.9%CVE-2013-10066CRITICALKordil EDMS v2.2.60rc3 Unauthenticated Arbitrary File UploadEPSS 1.9%CVE-2019-12803HIGHHunesion i-oneNet unrestricted file upload vulnerabilityEPSS 1.9%CVE-2017-6041—An Unrestricted Upload issue was discovered in Marel Food Processing Systems M3000 terminal associated with the following systems: A320, A32EPSS 1.8%CVE-2012-10052CRITICALEGallery 1.2 Arbitrary PHP File UploadEPSS 1.8%CVE-2024-2221CRITICALPath Traversal and Arbitrary File Upload Vulnerability in qdrant/qdrantEPSS 1.8%CVE-2024-51793CRITICALWordPress RepairBuddy plugin <= 3.8115 - Arbitrary File Upload vulnerabilityEPSS 1.8%CVE-2021-24254—College Publisher Import <= 0.1 - Arbitrary File Upload to RCEEPSS 1.8%CVE-2020-12005—FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ContEPSS 1.8%CVE-2023-4223HIGHChamilo LMS File Upload Functionality Remote Code ExecutionEPSS 1.8%CVE-2023-4225HIGHChamilo LMS File Upload Functionality Remote Code ExecutionEPSS 1.8%CVE-2023-4224HIGHChamilo LMS File Upload Functionality Remote Code ExecutionEPSS 1.8%CVE-2017-16736—An Unrestricted Upload Of File With Dangerous Type issue was discovered in Advantech WebAccess versions prior to 8.3. WebAccess allows a remEPSS 1.8%CVE-2026-28270MEDIUMKiteworks Core has an Unrestricted Upload of File with Dangerous TypeEPSS 1.8%CVE-2025-67506CRITICALPipesHub Vulnerable to Path Traversal through Unauthenticated Arbitrary File UploadEPSS 1.8%CVE-2019-1010062—PluckCMS 4.7.4 and earlier is affected by: CWE-434 Unrestricted Upload of File with Dangerous Type. The impact is: get webshell. The componeEPSS 1.8%CVE-2021-4354HIGHPWA for WP & AMP <= 1.7.32 - Arbitrary File UploadEPSS 1.8%CVE-2024-7694HIGHTeamT5 ThreatSonar Anti-Ransomware - Arbitrary File UploadEPSS 1.8%KEVCVE-2012-10038CRITICALAuxilium RateMyPet Arbitrary File Upload RCEEPSS 1.8%