CVE-2026-42509
Modified Modified - Updated After Analysis
Reflected Cross-Site Scripting in Apache Wicket

Publication date: 2026-05-06

Last updated on: 2026-05-07

Assigner: Apache Software Foundation

Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket. This issue affects Apache Wicket: from 8.0.0 through 8.17.0, 9.0.0, from 10.0.0 through 10.8.0. Users are recommended to upgrade to version 10.9.0, which fixes the issue.
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Meta Information
Published
2026-05-06
Last Modified
2026-05-07
Generated
2026-06-16
AI Q&A
2026-05-06
EPSS Evaluated
2026-06-14
NVD
CVE-2026-42509
EUVD
EUVD-2026-27556
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
apache wicket From 10.0.0 (inc) to 10.9.0 (exc)
apache wicket From 8.0.0 (inc) to 8.17.0 (inc)
apache wicket From 9.0.0 (inc) to 9.22.0 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

CVE-2026-42509 is a Cross-site Scripting (XSS) vulnerability in Apache Wicket. It occurs due to improper neutralization of input during web page generation, which allows crafted strings to break out of the JavaScript sequence.

This means that an attacker can inject malicious scripts into web pages generated by affected versions of Apache Wicket, potentially leading to unauthorized script execution in users' browsers.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of the affected web application. This can lead to various impacts such as theft of user credentials, session hijacking, defacement of web pages, or redirection to malicious sites.

Users of affected Apache Wicket versions are at risk until they upgrade to version 10.9.0 or later, which contains the fix.

Mitigation Strategies

To mitigate this Cross-site Scripting (XSS) vulnerability in Apache Wicket, users are recommended to upgrade to Apache Wicket version 10.9.0 or later, which contains the fix for this issue.

Compliance Impact

The provided information does not specify how the Apache Wicket Cross-site Scripting (XSS) vulnerability (CVE-2026-42509) impacts compliance with common standards and regulations such as GDPR or HIPAA.

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