CVE-2026-66390: Apache Wicket: crafted Link URL strings can break out of the JavaScript sequence
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket.
This issue affects Apache Wicket: from 9.0.0 through 9.23.0, from 10.0.0 through 10.9.0.
Users are recommended to upgrade to version 10.10.0, which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache Wicketto a version that resolves this vulnerability.Fixed in 10.10.0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-66390?
The severity of CVE-2026-66390 is medium with a score of 6.1.
How do I fix CVE-2026-66390?
To fix CVE-2026-66390, upgrade to Apache Wicket version 10.10.0 or later.
What type of vulnerability is CVE-2026-66390?
CVE-2026-66390 is classified as a Cross-site Scripting (XSS) vulnerability.
Which versions of Apache Wicket are affected by CVE-2026-66390?
CVE-2026-66390 affects Apache Wicket versions from 9.0.0 to 9.23.0 and from 10.0.0 to 10.9.0.
What impact does CVE-2026-66390 have on users?
Users may be exposed to crafted Link URL strings that can break out of the JavaScript sequence, leading to potential security risks.