Plone through 5.2.4 allows XSS via the inline_diff methods in Products.CMFDiffTool.
{
"github_reviewed": true,
"github_reviewed_at": "2021-05-27T22:17:45Z",
"nvd_published_at": "2021-05-21T22:15:00Z",
"severity": "MODERATE",
"cwe_ids": [
"CWE-79"
]
}