Simple users can create global SSX/JSX without specific rights: in theory only users with Programming Rights should be allowed to create SSX or JSX that are executed everywhere on a wiki. But a bug allow anyone with edit rights to actually create those.
This issue has been patched in XWiki 13.10-rc-1, 12.10.11 and 13.4.6.
There's no easy workaround for this issue, administrators should upgrade their wiki.
https://jira.xwiki.org/browse/XWIKI-19155
If you have any questions or comments about this advisory:
{
"cwe_ids": [
"CWE-648"
],
"github_reviewed": true,
"github_reviewed_at": "2022-04-08T21:59:04Z",
"nvd_published_at": "2022-04-08T19:15:00Z",
"severity": "MODERATE"
}