Tags from pages not viewable to the current user are leaked by the tags API. This information can also be exploited to infer the document reference of non-viewable pages.
This vulnerability has been patched in XWiki 14.4.8, 14.10.4, and 15.0 RC1.
There is no workaround apart from upgrading to a fixed version.
If you have any questions or comments about this advisory:
{
"cwe_ids": [
"CWE-200"
],
"github_reviewed": true,
"github_reviewed_at": "2023-06-20T16:45:12Z",
"nvd_published_at": "2023-06-23T16:15:09Z",
"severity": "MODERATE"
}