CVE-2023-1713: Bitrix24 Remote Command Execution (RCE) via Insecure Temporary File Creation

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% 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

Insecure temporary file creation in bitrix/modules/crm/lib/order/import/instagram.php in Bitrix24 22.0.300 hosted on Apache HTTP Server allows remote authenticated attackers to execute arbitrary code via uploading a crafted ".htaccess" file.

Affected products

Bitrix24: 22.0.300

References

https://starlabs.sg/advisories/23/23-1713/
https://starlabs.sg/advisories/23/23-1713/

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