CVE-2023-1720 Information

Description

Lack of mime type response header in Bitrix24 22.0.300 allows authenticated remote attackers to execute arbitrary JavaScript code in the victim’s browser and possibly execute arbitrary PHP code on the server if the victim has administrator privilege via uploading a crafted HTML file through /desktop_app/file.ajax.php?action=uploadfile.

Reference

https://starlabs.sg/advisories/23/23-1720/