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| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| org.xwiki.platform:xwiki-platform-wiki-ui-mainwiki | maven | < 12.10.11 | 12.10.11 |
| org.xwiki.platform:xwiki-platform-wiki-ui-mainwiki | maven | >= 13.0.0, < 13.4.7 | 13.4.7 |
| org.xwiki.platform:xwiki-platform-wiki-ui-mainwiki | maven | >= 13.5.0, < 13.10.3 | 13.10.3 |
The vulnerability stems from improper output encoding in the WikiManager.JoinWiki template. The original code directly injected the 'requestJoin' request parameter into an HTML input field without XML escaping, as shown in the diff. This allows attackers to inject arbitrary JavaScript via the 'requestJoin' parameter. The patched version explicitly adds $escapetool.xml to sanitize the output. While this is a template-level issue rather than a traditional function, the Velocity template rendering mechanism responsible for processing $!request.requestJoin is the vulnerable component.
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