Fallos del tipo CWE-434

3084 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-2022-44400CRITICALPurchase Order Management System v1.0 contains a file upload vulnerability via /purchase_order/admin/?page=system_info.EPSS 1.1%CVE-2026-15158CRITICALBlocksy Companion <= 2.1.46 - Unauthenticated Arbitrary File Upload via 'blc-review-images[]' ParameterEPSS 1.1%CVE-2024-7770HIGHBit File Manager – 100% Free & Open Source File Manager and Code Editor for WordPress <= 6.5.5 - Authenticated (Subscriber+) Arbitrary File UploadEPSS 1.1%CVE-2026-22786HIGHGin-vue-admin has arbitrary file upload vulnerability caused by path traversalEPSS 1.1%CVE-2024-50482CRITICALWordPress Woocommerce Product Design plugin <= 1.0.0 - Arbitrary File Upload vulnerabilityEPSS 1.1%CVE-2025-12352CRITICALGravity Forms <= 2.9.20 - Unauthenticated Arbitrary File Upload via 'copy_post_image'EPSS 1.1%CVE-2024-50473CRITICALWordPress Ajar in5 Embed plugin <= 3.1.3 - Arbitrary File Upload vulnerabilityEPSS 1.1%CVE-2024-3437MEDIUMSourceCodester Prison Management System Avatar add-admin.php unrestricted uploadEPSS 1.1%CVE-2024-50493CRITICALWordPress Automatic Translation plugin <= 1.0.4 - Arbitrary File Upload vulnerabilityEPSS 1.1%CVE-2023-31576HIGHAn arbitrary file upload vulnerability in Serendipity 2.4-beta1 allows attackers to execute arbitrary code via a crafted HTML or Javascript EPSS 1.1%CVE-2022-43146HIGHAn arbitrary file upload vulnerability in the image upload function of Canteen Management System v1.0 allows attackers to execute arbitrary EPSS 1.1%CVE-2024-9660HIGHSchool Management <= 91.5.0 - Authenticated (Student+) Arbitrary File UploadEPSS 1.1%CVE-2026-5364HIGHDrag and Drop File Upload for Contact Form 7 <= 1.1.3 - Unauthenticated Arbitrary File Upload via sanitize_file_name BypassEPSS 1.1%CVE-2024-22824CRITICALAn issue in Timo v.2.0.3 allows a remote attacker to execute arbitrary code via the filetype restrictions in the UploadController.java compoEPSS 1.1%CVE-2021-36426HIGHFile Upload vulnerability in phpwcms 1.9.25 allows remote attackers to run arbitrary code via crafted file upload to include/inc_lib/generalEPSS 1.1%CVE-2021-42123HIGHMissing Upload Filter in TopEaseEPSS 1.1%CVE-2022-41538HIGHWedding Planner v1.0 was discovered to contain an arbitrary file upload vulnerability in the component /Wedding-Management-PHP/admin/photos_EPSS 1.1%CVE-2023-29635CRITICALFile upload vulnerability in Antabot White-Jotter v0.2.2, allows remote attackers to execute malicious code via the file parameter to functiEPSS 1.1%CVE-2023-39346HIGHbjrjk/LinuxASMCallGraph before commit 20dba06 allows attackers to cause a RCE on the server side via uploading a crafted ZIP file due to incorrect filtering rules of uploaded fileEPSS 1.1%CVE-2020-20735CRITICALFile Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.EPSS 1.1%