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-2026-4808HIGHGerador de Certificados – DevApps <= 1.3.6 - Authenticated (Administrator+) Arbitrary File UploadEPSS 0.8%CVE-2022-41267CRITICALSAP Business Objects Platform - versions 420, and 430, allows an attacker with normal BI user privileges to upload/replace any file on BusinEPSS 0.8%CVE-2024-34411CRITICALWordPress canvasio3D Light plugin <= 2.5.0 - Arbitrary File Upload vulnerabilityEPSS 0.8%CVE-2023-3032HIGHMobatime web application - Arbitrary file upload (RCE)EPSS 0.8%CVE-2026-26212HIGHRara One Click Demo Import < 1.3.5 Arbitrary File Upload RCEEPSS 0.8%CVE-2026-70558CRITICALDinky Unauthenticated Arbitrary File Write via /download/uploadFromRsByLocal Gated Only by Hardcoded Default TokenEPSS 0.8%CVE-2026-26746HIGHOpenSourcePOS 3.4.1 contains a Local File Inclusion (LFI) vulnerability in the Sales.php::getInvoice() function. An attacker can read arbitrEPSS 0.8%CVE-2024-46479CRITICALVenki Supravizio BPM through 18.0.1 was discovered to contain an arbitrary file upload vulnerability. An authenticated attacker may upload aEPSS 0.8%CVE-2024-12854HIGHGarden Gnome Package <= 2.3.0 - Authenticated (Author+) Arbitrary File UploadEPSS 0.8%CVE-2024-34416CRITICALWordPress Pk Favicon Manager plugin <= 2.1 - Arbitrary File Upload vulnerabilityEPSS 0.8%CVE-2023-33318CRITICALWordPress WooCommerce Follow-Up Emails Plugin <= 4.9.40 is vulnerable to Arbitrary File UploadEPSS 0.8%CVE-2023-7309CRITICALDahua Smart Park Integrated Management Platform Front-End Arbitrary File UploadEPSS 0.8%CVE-2024-3863CRITICALThe executable file warning was not presented when downloading .xrm-ms files. *Note: This issue only affected Windows operating systems. OEPSS 0.8%CVE-2024-40400HIGHAn arbitrary file upload vulnerability in the image upload function of Automad v2.0.0 allows attackers to execute arbitrary code via a craftEPSS 0.8%CVE-2021-24981—Directorist – Business Directory Plugin < 7.0.6.2 - CSRF to Remote File UploadEPSS 0.8%CVE-2024-48782CRITICALFile Upload vulnerability in DYCMS Open-Source Version v2.0.9.41 allows a remote attacker to execute arbitrary code via the application onlyEPSS 0.8%CVE-2023-23656CRITICALWordPress MainWP File Uploader Extension Plugin <= 4.1 - Unauthenticated Arbitrary File Upload VulnerabilityEPSS 0.8%CVE-2021-35261CRITICALFile Upload Vulnerability in Yupoxion BearAdmin before commit 10176153528b0a914eb4d726e200fd506b73b075 allows attacker to execute arbitrary EPSS 0.8%CVE-2022-46493CRITICALDefault version of nbnbk was discovered to contain an arbitrary file upload vulnerability via the component /api/User/download_img.EPSS 0.8%CVE-2022-0945CRITICALStored XSS viva axd and cshtml file upload in star7th/showdoc in star7th/showdocEPSS 0.8%