Is CVE-2023-1720 actively exploited?

No active exploitation of CVE-2023-1720 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-1720 be exploited remotely?

Yes. CVE-2023-1720 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-1720?

CVE-2023-1720 has a CVSS score of 8.0 (HIGH).

HOME VULNERABILITIESCVE-2023-1720

HIGH

CVE-2023-1720

CWE-434Published: November 1, 2023· Updated: Jun 17, 2026

8.0

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2023-1720 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.0.