CVE-2021-42856: Riverbed Steelcentral Appinternals Dynamic Sampling Agent

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

It was discovered that the /DsaDataTest endpoint is susceptible to Cross-site scripting (XSS) attack. It was noted that the Metric parameter does not have any input checks on the user input that allows an attacker to craft its own malicious payload to trigger a XSS vulnerability.

Affected products

• Riverbed Steelcentral Appinternals Dynamic Sampling Agent: from 11.0.0, before 11.8.8 (fixed in 11.8.8); from 12.0.0, before 12.13.0 (fixed in 12.13.0); version 10.0.0 only

Published 2022-03-10. Last modified 2026-06-17.