Weaknesses of type CWE-434

3,110 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-2025-67924CRITICALWordPress Corpkit theme <= 2.0 - Arbitrary File Upload vulnerabilityEPSS 0.4%CVE-2025-11436MEDIUMJhumanJ OpnForm answer unrestricted uploadEPSS 0.4%CVE-2025-9406MEDIUMxuhuisheng lemon CmsArticleController.java uploadImage unrestricted uploadEPSS 0.4%CVE-2025-13544MEDIUMashraf-kabir travel-agency customer_register.php unrestricted uploadEPSS 0.4%CVE-2025-0402MEDIUM1902756969 reggie CommonController.java upload unrestricted uploadEPSS 0.4%CVE-2024-13212MEDIUMSingMR HouseRent AddHouseController.java upload unrestricted uploadEPSS 0.4%CVE-2026-16226MEDIUMSourceCodester Pizzafy Ecommerce System admin_class_novo.php save_settings unrestricted uploadEPSS 0.4%CVE-2026-5576MEDIUMSourceCodester/jkev Record Management System Add Employee save_emp.php unrestricted uploadEPSS 0.4%CVE-2026-19383MEDIUMsaithink/saigroup SaiAdmin Plugin Upload Endpoint upload shell_exec unrestricted uploadEPSS 0.4%CVE-2026-6561MEDIUMEyouCMS Index.php edit_adminlogo unrestricted uploadEPSS 0.4%CVE-2026-7134MEDIUMcode-projects Online Lot Reservation System edithousepic.php unrestricted uploadEPSS 0.4%CVE-2026-15518MEDIUMAREA 17 Twill CMS Media Library Insert FileLibraryController.php storeFile unrestricted uploadEPSS 0.4%CVE-2026-4875MEDIUMitsourcecode Free Hotel Reservation System index.php unrestricted uploadEPSS 0.4%CVE-2026-7133MEDIUMcode-projects Online Lot Reservation System activity.php unrestricted uploadEPSS 0.4%CVE-2026-7393MEDIUMSourceCodester Pizzafy Ecommerce System File Extension admin_class_novo.php save_menu unrestricted uploadEPSS 0.4%CVE-2024-13134MEDIUMZeroWdd studentmanager TeacherController. java editTeacher unrestricted uploadEPSS 0.4%CVE-2026-6650MEDIUMZ-BlogPHP ZBA File app_upload.php UnPack unrestricted uploadEPSS 0.4%CVE-2026-7578MEDIUMMacCMS Pro Plugin Installation add.html install unrestricted uploadEPSS 0.4%CVE-2026-7673MEDIUMcrmeb_java Admin Upload UploadServiceImpl.java unrestricted uploadEPSS 0.4%CVE-2026-7238MEDIUMcode-projects Online Music Site AdminUpdateAlbum.php unrestricted uploadEPSS 0.4%