Cross-site scripting via unescaped Button model
Published Aug 31, 2026 · Updated Aug 31, 2026
Cross-site scripting in Apache Wicket 8.0.0 through 8.18.0, 9.0.0 through 9.23.0, and 10.0.0 through 10.10.0 allows attackers to run browser script. The Button constructor disables model-string escaping, and a Button rendered as a button element writes attacker-influenced model markup into the unencoded element body. Exploitation requires an application to use Button, AjaxButton, AjaxFallbackButton, or WizardButton on a button element and place attacker-influenced request or stored data in its model; script then runs in a page viewer's browser context.
Summary
What happened
Cross-site scripting in Apache Wicket 8.0.0 through 8.18.0, 9.0.0 through 9.23.0, and 10.0.0 through 10.10.0 allows attackers to run browser script. The Button constructor disables model-string escaping, and a Button rendered as a button element writes attacker-influenced model markup into the unencoded element body. Exploitation requires an application to use Button, AjaxButton, AjaxFallbackButton, or WizardButton on a button element and place attacker-influenced request or stored data in its model; script then runs in a page viewer's browser context.
The record
- CVE
- CVE-2026-76982
- Published
- Aug 31, 2026
- Updated
- Aug 31, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache Wicket
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 31, 2026CVE publishedPublication date reported by the CVE source.
- Aug 31, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.0 <=10.10.0
- Affected versionversion=8.0.0 <=8.18.0
- Affected versionversion=9.0.0 <=9.23.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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