VULNERABILITY INTELLIGENCE
CVE-2023-1720
CVSS score9.6 CRITICAL
EPSS probability0.85%
CISA KEVNot currently listed
Published2023-11-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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.
Weakness classification
- info@starlabs.sg: CWE-434
- nvd@nist.gov: CWE-434
Primary references
- info@starlabs.sg — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory