Fallos del tipo CWE-434

3099 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-2025-45855MEDIUMAn arbitrary file upload vulnerability in the component /upload/GoodsCategory/image of erupt v1.12.19 allows attackers to execute arbitrary EPSS 0.3%CVE-2024-40553MEDIUMTmall_demo v2024.07.03 was discovered to contain an arbitrary file upload via the component uploadUserHeadImage.EPSS 0.3%CVE-2026-28800MEDIUMNatro Macro: Malicious actions allowed through Discord RC Commands by any userEPSS 0.3%CVE-2025-2155HIGHArbitrary File Upload in EchoCCS's Specto CMEPSS 0.3%CVE-2025-3169LOWProjeqtor saveAttachment.php unrestricted uploadEPSS 0.3%CVE-2025-53251CRITICALWordPress Pin WP theme < 7.2 - Arbitrary File Upload VulnerabilityEPSS 0.3%CVE-2025-48396HIGHArbitrary code execution is possible due to improper validation of the file upload functionality in Eaton BLSS. This security issue has beenEPSS 0.3%CVE-2024-8918HIGHFile Manager Pro <= 8.3.9 - Unauthenticated Limited JavaScript File UploadEPSS 0.3%CVE-2025-53213CRITICALWordPress ReachShip WooCommerce Multi-Carrier & Conditional Shipping <= 4.3.1 - Arbitrary File Upload VulnerabilityEPSS 0.3%CVE-2026-9374MEDIUMyangzongzhuan RuoYi-Vue Common Upload Endpoint upload FileUploadUtils.upload unrestricted uploadEPSS 0.3%CVE-2025-27714MEDIUMINFINITT Healthcare INFINITT PACS Unrestricted Upload of File with Dangerous TypeEPSS 0.3%CVE-2025-15050MEDIUMcode-projects Student File Management System save_file.php unrestricted uploadEPSS 0.3%CVE-2025-55061HIGHPriority - CWE-434 Unrestricted Upload of File with Dangerous TypeEPSS 0.3%CVE-2019-25229HIGHKentico Xperience <= 12.0.29 MVC Forms Unrestricted File UploadEPSS 0.3%CVE-2026-11839CRITICALArbitrary File Upload in Basarsoft's RotabanEPSS 0.3%CVE-2025-61768MEDIUMKuno CMS Vulnerable to Server-Side Request Forgery (SSRF) via Unsafe SVG UploadEPSS 0.3%CVE-2025-53891MEDIUMTIME LINE has Improper File Validation in Upload SectionEPSS 0.3%CVE-2025-7100MEDIUMBoyunCMS Index.php unrestricted uploadEPSS 0.3%CVE-2025-9841MEDIUMcode-projects Mobile Shop Management System AddNewProduct.php unrestricted uploadEPSS 0.3%CVE-2024-12042MEDIUMMStore API – Create Native Android & iOS Apps On The Cloud <= 4.16.4 - Authenticated (Subscriber+) HTML File Upload (Stored Cross-Site Scripting)EPSS 0.3%