E-Business Designer (eBD) 3.1.4 and earlier allows remote attackers to upload or modify arbitrary files, and execute arbitrary code, via a direct request to (1) common/html_editor/image_browser.upload.html, (2) common/html_editor/image_browser.html, or (3) common/html_editor/html_editor.html.  NOTE: this can also be used for cross-site scripting (XSS) attacks by uploading cascading style sheet (.CSS) files.