Falhas do tipo CWE-434

3.069 resultados

Upload irrestrito de arquivo com tipo perigoso

A aplicação aceita upload de arquivos sem validar adequadamente o tipo ou extensão, permitindo que um atacante envie executáveis, scripts ou outros arquivos maliciosos que serão armazenados ou executados no servidor. O risco aumenta se o arquivo for salvo em diretório acessível pela web ou em local onde será processado automaticamente.

Exemplo

Um sistema de upload de 'fotos de perfil' verifica apenas o tamanho do arquivo, mas não valida a extensão. Um atacante envia um arquivo .php disfarçado de imagem; se salvo em /uploads/ acessível via web, ele consegue executar código PHP no servidor ao acessar a URL direta.

Como mitigar

Valide extensões contra uma lista branca (whitelist) de tipos permitidos, verifique a assinatura do arquivo (magic bytes) e não confie apenas no Content-Type do cliente. Armazene uploads fora do diretório web ou configure o servidor para não executar scripts no diretório de uploads.

CVE-2025-12352CRITICALGravity Forms <= 2.9.20 - Unauthenticated Arbitrary File Upload via 'copy_post_image'EPSS 1.1%CVE-2024-3437MEDIUMSourceCodester Prison Management System Avatar add-admin.php unrestricted uploadEPSS 1.1%CVE-2024-50482CRITICALWordPress Woocommerce Product Design plugin <= 1.0.0 - Arbitrary File Upload vulnerabilityEPSS 1.1%CVE-2024-50473CRITICALWordPress Ajar in5 Embed plugin <= 3.1.3 - Arbitrary File Upload vulnerabilityEPSS 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-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-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-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-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-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%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-2023-39970—Extension - acymailing.com - RCE in AcyMailing component for Joomla 6.7.0-8.5.0EPSS 1.1%CVE-2022-43306HIGHThe d8s-timer for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. A potential code eEPSS 1.1%CVE-2022-41533HIGHOnline Diagnostic Lab Management System v1.0 was discovered to contain an arbitrary file upload vulnerability via the component /php_action/EPSS 1.0%CVE-2024-43249CRITICALWordPress Bit Form Pro plugin <= 2.6.4 - Authenticated Arbitrary File Upload vulnerabilityEPSS 1.0%CVE-2023-22851HIGHTiki before 24.2 allows lib/importer/tikiimporter_blog_wordpress.php PHP Object Injection by an admin because of an unserialize call.EPSS 1.0%