Weaknesses of type CWE-434

3,091 results

Upload sem restrição de arquivo com tipo perigoso

Ocorre quando uma aplicação aceita upload de arquivos sem validar adequadamente seu tipo, extensão ou conteúdo. Um atacante pode enviar executáveis, scripts ou outros arquivos maliciosos, que serão armazenados ou executados no servidor, comprometendo sua integridade e segurança.

Example

Um formulário de perfil aceita qualquer arquivo como 'foto do usuário' sem checar extensão ou MIME type. Um atacante envia um arquivo .exe ou .php renomeado como .jpg, que é salvo no diretório web e posteriormente executado quando acessado, permitindo execução de código remoto.

How to mitigate

Valide uploads checando MIME type real (não apenas extensão), restrinja tipos permitidos de forma explícita, armazene arquivos fora da raiz web, desabilite execução de scripts no diretório de upload e considere usar vírus scanner. Implemente whitelist rigorosa, nunca blacklist.

CVE-2026-41938HIGHVvveb < 1.0.8.2 RCE via Media Upload HandlerEPSS 1.0%CVE-2026-2354HIGHSwiss Toolkit For WP <= 1.4.6 - Authenticated (Author+) Arbitrary File Upload via upload_extension_files()EPSS 1.0%CVE-2025-1093CRITICALAIHub <= 1.3.7 - Unauthenticated Arbitrary File Upload in generate_imageEPSS 1.0%CVE-2024-0916CRITICALUnauthenticated Remote Code Execution in UvDesk CommunityEPSS 1.0%CVE-2026-23697HIGHVtiger CRM < 8.4.0 Authenticated File Upload RCE via Documents ModuleEPSS 1.0%CVE-2022-1345CRITICALStored XSS viva .svg file upload in causefx/organizrEPSS 1.0%CVE-2026-28502CRITICALWWBN AVideo: Authenticated Remote Code Execution via Unsafe Plugin ZIP ExtractionEPSS 1.0%CVE-2022-44053CRITICALThe d8s-networking for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. A potential cEPSS 1.0%CVE-2025-11499CRITICALTablesome Table – Contact Form DB – WPForms, CF7, Gravity, Forminator, Fluent <= 1.1.32 - Unauthenticated Arbitrary File UploadEPSS 1.0%CVE-2025-43946CRITICALTCPWave DDI 11.34P1C2 allows Remote Code Execution via Unrestricted File Upload (combined with Path Traversal).EPSS 1.0%CVE-2023-4159CRITICALUnrestricted Upload of File with Dangerous Type in omeka/omeka-sEPSS 1.0%CVE-2025-11391CRITICALPPOM – Product Addons & Custom Fields for WooCommerce <= 33.0.15 - Unauthenticated Arbitrary File UploadEPSS 1.0%CVE-2026-2743CRITICALSEPPmail User Web Interface Arbitrary File Write to RCEEPSS 1.0%CVE-2012-10042HIGHSflog! CMS 1.0 Arbitrary File Upload RCEEPSS 1.0%CVE-2026-49849CRITICALxShop: Unrestricted File Upload in File Attachment Module in Admin panel leads to Arbitrary Code ExecutionEPSS 1.0%CVE-2022-42698CRITICALWordPress Api2Cart Bridge Connector plugin <= 1.1.0 - Arbitrary File Upload vulnerabilityEPSS 1.0%CVE-2022-43074CRITICALAyaCMS v3.1.2 was discovered to contain an arbitrary file upload vulnerability via the component /admin/fst_upload.inc.php. This vulnerabiliEPSS 1.0%CVE-2023-1721CRITICALYoga Class Registration System 1.0 - RCEEPSS 1.0%CVE-2026-23636MEDIUMKiteworks Secure Data Forms is vulnerable to an Unrestricted Upload of File with Dangerous TypeEPSS 1.0%CVE-2023-1313HIGHUnrestricted Upload of File with Dangerous Type in cockpit-hq/cockpitEPSS 1.0%