CVE-2023-5826: Netentsec Application Security Gateway

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability was found in Netentsec NS-ASG Application Security Gateway 6.3 and classified as critical. Affected by this issue is some unknown functionality of the file /admin/list_onlineuser.php. The manipulation of the argument SessionId leads to sql injection. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-243716. NOTE: We tried to contact the vendor early about the disclosure but the official mail address was not working properly.

Affected products

• Netentsec Application Security Gateway: version 6.3 only

Published 2023-10-27. Last modified 2026-06-17.