Zero-Day Advisory

Fortinet Discovers Schneider Electric Smart-UPS SRT 5000 Reflected Cross-Site Scripting Vulnerability


Fortinet's FortiGuard Labs had discovered a Cross-Site Scripting (XSS) vulnerability in Policy Configuration of Schneider Electric Smart-UPS SRT 5000.

Schneider Electric Smart-UPS is an intelligent and efficient network power protection from entry level to scaleable runtime.

The vulnerability is caused by insufficient input sanitization in Smart-UPS SRT 5000 policy configuration page. Upon successful exploitation, it allows attackers to launch client-side script execution in the browser's process context.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Sep 22, 2021

Users should apply the solution provided by Schneider Electric.

Additional Information

The vulnerability affected Schneider Electric Smart-UPS SRT 5000 Network Management Card 2 (NMC2) Policy Configuration version 6.9.6 and earlier.


Fortinet reported the vulnerability to Schneider Electric on 13th January, 2021.

Schneider Electric confirmed the vulnerability on 20th  January, 2021. 

Schneider Electric  released patch for the vulnerability on 9th November, 2021.


This vulnerability was discovered by Nguyen Thanh Nguyen of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.