It's possible to use the right of an existing document content author to execute a text area property.
To reproduce:
{{groovy}}println("hello from groovy!"){{/groovy}}
This has been patched in XWiki 14.10, 14.4.7, and 13.10.11.
No known workaround.
https://jira.xwiki.org/browse/XWIKI-20373
If you have any questions or comments about this advisory:
{
"cwe_ids": [
"CWE-284"
],
"github_reviewed": true,
"github_reviewed_at": "2023-03-03T22:48:40Z",
"nvd_published_at": "2023-03-02T19:15:00Z",
"severity": "CRITICAL"
}