CVE-2021-36737: XSS in V3 Demo Portlet

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-01-06 · updated 2026-06-17
Weakness: CWE-79

Description

The input fields of the Apache Pluto UrlTestPortlet are vulnerable to Cross-Site Scripting (XSS) attacks. Users should migrate to version 3.1.1 of the v3-demo-portlet.war artifact

Affected products

Apache Software Foundation Apache Pluto: before 3.1.1 — fixed in 3.1.1

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Pluto 3.1.1. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/x7kt47bf358x8sg9qg02zt0dmdrtow25
https://lists.apache.org/thread/x7kt47bf358x8sg9qg02zt0dmdrtow25

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