It was possible to execute a ReDoS-type attack inside CKEditor 4 before 4.16 by persuading a victim to paste crafted text into the Styles input of specific dialogs (in the Advanced Tab for Dialogs plugin).
{
"github_reviewed_at": "2024-04-22T23:14:44Z",
"severity": "MODERATE",
"cwe_ids": [
"CWE-1333"
],
"github_reviewed": true,
"nvd_published_at": "2021-01-26T21:15:00Z"
}