CVE-2026-76982 Apache Software Foundation CVE debrief

Who should care

Apache Wicket users, developers, and administrators should be aware of this vulnerability and take necessary actions to prevent potential XSS attacks. Affected operators, platforms, and security teams should review and update affected applications to prevent potential XSS attacks. Vulnerability management and security teams should prioritize upgrading to patched versions and apply the workaround by calling setEscapeModelStrings(true) on affected buttons.

Technical summary

Improper neutralization of input during web page generation in Apache Wicket allows for cross-site scripting (XSS) attacks. The issue occurs when a Button is rendered on a <button> element and its model holds data an attacker can influence. This can lead to potential XSS attacks, allowing attackers to inject malicious code into the application. Apache Wicket users should prioritize upgrading to patched versions to prevent potential XSS attacks.

Defensive priority

Apache Wicket users should prioritize upgrading to patched versions to prevent potential XSS attacks.

Recommended defensive actions

• Upgrade to Apache Wicket version 8.19.0, 9.24.0, or 10.11.0
• Apply the workaround by calling setEscapeModelStrings(true) on affected buttons
• Review and update affected applications to prevent potential XSS attacks
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE-2026-76982 issue affects Apache Wicket versions from 8.0.0 through 8.18.0, from 9.0.0 through 9.23.0, and from 10.0.0 through 10.10.0. Users are recommended to upgrade to version 8.19.0, 9.24.0, or 10.11.0, which fix the issue. Evidence is limited; further verification is required to confirm affected scope, severity, and vendor guidance.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.