Attaching a file with double quotes (") in name yields different filename

Summary

Attaching a file with double quotes (") in name yields different filename

Environment

• Confluence Cloud version 5.9.1-OD-2015.40.1-0001
• Firefox version 40.0.3
• Chrome version 45.0.2454.85

Steps to Reproduce

1. Create a page with any data. Add the Attachment macro
2. Add attachment with filename with double quotes (eg: test"Chrome".pdf) by uploading to page (...), Choose file and Attach

Expected Results

Filename uploaded same like original file in Attachment macro

Actual Results

Filename changed to ".pdf (FireFox)
Filename change (") to %22, example: test "this".pdf > test %22this%22.pdf (Chrome)

Workaround

• Drag & Drop files to the designated Drag & Drop area
• Upload while in Edit page