Nagios XI - SQLi (CVE-2023-48084)

CVE-2023-48084 is a critical vulnerability affecting Nagios XI, where improper input handling in an administrative interface leads to SQL injection through the bulk modification tool.

CrowdSec has been tracking this vulnerability and its exploits since 7th of April 2025.

Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2023-48084 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning. Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2023-48084 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2023-48084 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Observed exploitation attempts often involve requests targeting URLs matching /nagiosxi/index.php/admin/banner_message-ajaxhelper.php.