CVE-2021-31521

Description

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.67% Top 30%
Vendor Advisory trendmicro.com
Affected: Trend Micro Trend Micro InterScan Web Security Virtual Appliance
Published at:
Updated at:

References

Link Tags
https://success.trendmicro.com/solution/000286452 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-31521?
CVE-2021-31521 has been scored as a medium severity vulnerability.
How to fix CVE-2021-31521?
To fix CVE-2021-31521, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31521 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-31521 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-31521?
CVE-2021-31521 affects Trend Micro Trend Micro InterScan Web Security Virtual Appliance .
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.