Katsem File Upload Fixed _verified_
If you use the desktop or mobile version, check for an "Update Available" notification.
: Fixed a bug where valid .pdf and .png files were incorrectly flagged. ✅ Current Status katsem file upload fixed
“I spent three weeks debugging chunk uploads. The hotfix resolved everything in five minutes. Katsem file upload fixed – finally!” – u/DevOpsDave If you use the desktop or mobile version,
Once you have applied the update or hotfix, run the following verification tests: The hotfix resolved everything in five minutes
A security vulnerability was identified in the file upload functionality of the Katsem application. Prior to the fix, the upload mechanism allowed unvalidated file types, leading to potential risks including:
In addition, a hotfix was released for legacy users still on version 3.1.x. This hotfix ( katsem-upload-patch-v2 ) is a drop-in replacement for the upload_handler.php file.