CVEs / CVE-2023-1718
CVE-2023-1718: Bitrix24 Bitrix24 vulnerability
- high 7.5 CVSS 3.1 (NVD)
- EPSS 28.6% chance of exploitation in the next 30 days, higher than 98% of CVEs (2 Nov 2026)
- Last changed at its sources
Are you affected? Check your servers with Stackurity: it lists the software on each server and the vulnerabilities to fix first.
Check your servers with Stackurity Already using Stackurity? Search for CVE-2023-1718
Description
Improper file stream access in /desktop_app/file.ajax.php?action=uploadfile in Bitrix24 22.0.300 allows unauthenticated remote attackers to cause denial-of-service via a crafted "tmp_url".
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Bitrix24 Bitrix24 | up to and including 22.0.300 | — |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HScored by NVD |
|---|---|
| Weakness | CWE-835 |
References
- CVE-2023-1718 on NVD
- https://starlabs.sg/advisories/23/23-1718/ Exploit, Third Party Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.