Fallos del tipo CWE-434

3096 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-2021-47888HIGHTextpattern 4.8.3 - Remote code executionEPSS 0.7%CVE-2020-37023HIGHKoken CMS 0.22.24 - Arbitrary File UploadEPSS 0.7%CVE-2024-57668HIGHIn Code-projects Shopping Portal v1.0, the insert-product.php page has an arbitrary file upload vulnerability.EPSS 0.7%CVE-2015-1785—In nextgen-galery wordpress plugin before 2.0.77.3 there are two vulnerabilities which can allow an attacker to gain full access over the weEPSS 0.7%CVE-2024-8089MEDIUMSourceCodester E-Commerce System controller.php unrestricted uploadEPSS 0.7%CVE-2024-7943MEDIUMitsourcecode Laravel Property Management System PropertiesController.php upload unrestricted uploadEPSS 0.7%CVE-2020-7302MEDIUMDLP ePO extension - Unrestricted Upload of File with Dangerous TypeEPSS 0.7%CVE-2025-2396HIGHe-Excellence U-Office Force - Arbitrary File UploadEPSS 0.7%CVE-2023-41725HIGHIvanti Avalanche EnterpriseServer Service Unrestricted File Upload Local Privilege Escalation VulnerabilityEPSS 0.7%CVE-2025-10754HIGHDocoDoco Store Locator <= 1.0.1 - Authenticated (Editor+) Arbitrary File UploadEPSS 0.7%CVE-2020-36942HIGHVictor CMS 1.0 - File Upload To RCEEPSS 0.7%CVE-2025-10051HIGHDemo Import Kit <= 1.1.0 - Authenticated (Admin+) Arbitrary File UploadEPSS 0.7%CVE-2023-2888MEDIUMPHPOK unrestricted uploadEPSS 0.7%CVE-2024-4306CRITICALUnrestricted Upload of File with Dangerous Type vulnerability in HubBankEPSS 0.7%CVE-2024-24026CRITICALAn arbitrary File upload vulnerability exists in Novel-Plus v4.3.0-RC1 and prior versions at com.java2nb.system.controller.SysUserControllerEPSS 0.7%CVE-2024-2531MEDIUMMAGESH-K21 Online-College-Event-Hall-Reservation-System update-rooms.php unrestricted uploadEPSS 0.7%CVE-2026-14494CRITICALSigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload FieldEPSS 0.7%CVE-2023-5812MEDIUMflusity CMS upload.php handleFileUpload unrestricted uploadEPSS 0.7%CVE-2023-36809HIGHKiwi TCMS's misconfigured HTTP headers allow stored XSS execution with FirefoxEPSS 0.7%CVE-2026-41269HIGHFlowise: File Upload Validation Bypass in createAttachmentEPSS 0.7%