CVE-2021-31521: Trend Micro Interscan Web Security Virtual Appliance

Medium severity, CVSS 5.4. EPSS: 1.4% chance of exploitation in the next 30 days.

Trend Micro InterScan Web Security Virtual Appliance version 6.5 was found to have a reflected cross-site scripting (XSS) vulnerability in the product's Captive Portal.

Affected products

• Trend Micro Interscan Web Security Virtual Appliance: version 6.5 only

Published 2021-06-17. Last modified 2026-06-17.