CVE-2023-1720

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.

CVSS v3.1

8.0 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1

9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS

0.85% chance of exploitation in the next 30 days, 56th percentile

Published

2023-11-01

Updated

2024-09-05

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2023-1719
• CVE-2023-1721
• CVE-2023-1718
• CVE-2023-1722
• CVE-2023-1717
• CVE-2023-1729