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-2020-15645HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Marvell QConvergeConsole 5.5.0.64. AlthougEPSS 10.7%CVE-2024-6127CRITICALBC Security Empire Path Traversal RCEEPSS 10.3%CVE-2025-40599CRITICALAn authenticated arbitrary file upload vulnerability exists in the SMA 100 series web management interface. A remote attacker with administrEPSS 9.7%CVE-2020-8866MEDIUMThis vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22. AuEPSS 9.6%CVE-2024-29272MEDIUMArbitrary File Upload vulnerability in VvvebJs before version 1.7.5, allows unauthenticated remote attackers to execute arbitrary code and oEPSS 9.4%CVE-2016-15043CRITICALWP Mobile Detector <= 3.5 - Arbitrary File UploadEPSS 8.9%CVE-2017-11154—Unrestricted file upload vulnerability in PixlrEditorHandler.php in Synology Photo Station before 6.7.3-3432 and 6.3-2967 allows remote attaEPSS 8.6%CVE-2022-46604HIGHAn issue in Tecrail Responsive FileManager v9.9.5 and below allows attackers to bypass the file extension check mechanism and upload a craftEPSS 8.6%CVE-2021-27274CRITICALThis vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System EPSS 8.5%CVE-2021-24160—Responsive Menu 4.0.0 - 4.0.3 - Authenticated Arbitrary File UploadEPSS 8.2%CVE-2020-36849CRITICALAIT CSV import/export <= 3.0.3 - Unauthenticated Arbitrary File UploadEPSS 8.0%CVE-2021-24212—WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCEEPSS 7.9%CVE-2021-34624CRITICALProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in File Uploader ComponentEPSS 7.8%CVE-2021-22937—A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator to perform a file write via a maliciously cEPSS 7.8%CVE-2022-34128CRITICALThe Cartography (aka positions) plugin before 6.0.1 for GLPI allows remote code execution via PHP code in the POST data to front/upload.php.EPSS 7.7%CVE-2021-24236—Imagements <= 1.2.5 - Unauthenticated Arbitrary File Upload to RCEEPSS 7.3%CVE-2026-12269HIGHAuthenticated File Write to RCE via keepalived in DDI CentralEPSS 7.0%CVE-2020-36705CRITICALAdning Advertising <= 1.5.5 - Arbitrary File UploadEPSS 6.9%CVE-2016-15042CRITICALFrontend File Manager < 4.0 & N-Media Post Front-end Form < 1.1 & - Arbitrary File UploadEPSS 6.7%CVE-2022-42040CRITICALThe d8s-algorithms package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The bEPSS 6.7%