We found a possible XSS vector in the WikiManager.JoinWiki wiki page related to the "requestJoin" field.
The issue is patched in versions 12.10.11, 14.0-rc-1, 13.4.7, 13.10.3.
The easiest workaround is to edit the wiki page WikiManager.JoinWiki (with wiki editor) and change the line
<input type='hidden' name='requestJoin' value="$!request.requestJoin"/>
into
<input type='hidden' name='requestJoin' value="$escapetool.xml($!request.requestJoin)">
If you have any questions or comments about this advisory: * Open an issue in Jira XWiki * Email us at security mailing list
{
"cwe_ids": [
"CWE-116",
"CWE-79"
],
"severity": "HIGH",
"nvd_published_at": "2022-05-25T21:15:00Z",
"github_reviewed_at": "2022-05-25T22:41:10Z",
"github_reviewed": true
}