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-2025-25784CRITICALAn arbitrary file upload vulnerability in the component \c\TemplateController.php of Jizhicms v2.5.4 allows attackers to execute arbitrary cEPSS 0.9%CVE-2022-42925CRITICALUnrestricted Upload of File with Dangerous Type in Forma LMSEPSS 0.9%CVE-2022-41681CRITICALFile Upload vulnerability in Forma LMSEPSS 0.9%CVE-2024-52429CRITICALWordPress WP Quick Setup plugin <= 2.0 - Arbitrary Plugin and Theme Installation to Remote Code Execution vulnerabilityEPSS 0.9%CVE-2024-23180HIGHImproper input validation vulnerability in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.7, Ver.3.0.x series versions prior to Ver.3EPSS 0.9%CVE-2025-1355MEDIUMneedyamin Library Card System Add Picture signup.php unrestricted uploadEPSS 0.9%CVE-2025-67325CRITICALUnrestricted file upload in the hotel review feature in QloApps versions 1.7.0 and earlier allows remote unauthenticated attackers to achievEPSS 0.9%CVE-2024-3736MEDIUMcym1102 nginxWebUI upload unrestricted uploadEPSS 0.9%CVE-2025-70457CRITICALA Remote Code Execution (RCE) vulnerability exists in Sourcecodester Modern Image Gallery App v1.0 within the gallery/upload.php component. EPSS 0.9%CVE-2023-40265HIGHAn issue was discovered in Atos Unify OpenScape Xpressions WebAssistant V7 before V7R1 FR5 HF42 P911. It allows authenticated remote code exEPSS 0.9%CVE-2026-35573CRITICALChurchCRM has a Path traversal leads to RCEEPSS 0.9%CVE-2023-27397CRITICALUnrestricted upload of file with dangerous type exists in MicroEngine Mailform version 1.1.0 to 1.1.8. If the product's file upload functionEPSS 0.9%CVE-2026-32931HIGHChamilo LMS has Arbitrary File Upload via MIME-Only Validation in Exercise Sound Upload Leads to RCEEPSS 0.9%CVE-2024-37847CRITICALAn arbitrary file upload vulnerability in MangoOS before 5.1.4 and Mango API before 4.5.5 allows attackers to execute arbitrary code via a cEPSS 0.9%CVE-2024-2381HIGHAliExpress Dropshipping with AliNext Lite <= 3.3.5 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 0.9%CVE-2026-87935HIGHPaid Downloads <= 3.15 - Unauthenticated Arbitrary File Upload via 'paiddownloads_update_file' ActionEPSS 0.9%CVE-2026-3459HIGHDrag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.5 - Unauthenticated Arbitrary File UploadEPSS 0.9%CVE-2024-3436MEDIUMSourceCodester Prison Management System Avatar edit-photo.php unrestricted uploadEPSS 0.9%CVE-2022-50936HIGHWBCE CMS 1.5.2 - Remote Code Execution (RCE) (Authenticated)EPSS 0.9%CVE-2024-1036HIGHopenBI Icon Screen.php uploadIcon unrestricted uploadEPSS 0.9%