Check Point Advisories

ScadaBR Cross-Site Scripting (CVE-2021-26829)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2774
Date Published:	11 Jan 2026
Severity:	Medium
Last Updated:	Sunday 11 January, 2026
Source:
Industry Reference:	CVE-2021-26829
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	ScadaBR version 0.9.1 and prior ScadaBR version 1.12.4 and prior
Vulnerability Description	A cross-site scripting vulnerability in ScadaBR allows attackers to inject malicious scripts via system_settings.shtm, potentially leading to unauthorized actions or data theft.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the ScadaBR Cross-Site Scripting (CVE-2021-26829) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: SCADA Protection Violation.
Attack Information: ScadaBR Cross-Site Scripting (CVE-2021-26829)