What’s Vulnerable › Vulnerabilities
CVE-2023-1720: Bitrix24 Stored Cross-Site Scripting (XSS) via File Upload
- Severity: high (CVSS 8.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-11-01 · updated 2026-06-17
- Weakness: CWE-434
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.
Affected products
- Bitrix24: 22.0.300
References
Get alerted when CVE-2023-1720 or the next vulnerability affects your stack