CVE-2021-30119: Kaseya VSA

Medium severity, CVSS 5.4. EPSS: 50.3% chance of exploitation in the next 30 days.

Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecurely returned in the requested web page and can be used to perform a Cross Site Scripting attack Example request: `https://x.x.x.x/HelpDeskTab/rcResults.asp?result=<script>alert(document.cookie)</script>` The same is true for the parameter FileName of /done.asp Eaxmple request: `https://x.x.x.x/done.asp?FileName=";</script><script>alert(1);a="&PathData=&originalName=shell.aspx&FileSize=4388&TimeElapsed=00:00:00.078`

Affected products

• Kaseya VSA: before 9.5.7 (fixed in 9.5.7)

Published 2021-07-09. Last modified 2026-08-14.