A malformed RSS feed can deliver an XSS payload
Create an RSS widget and add the domain https://blog.whitebear.vn/file/rss-xss2.rss
The XSS payload will be triggered by the title in tag <item>
Resolved in https://github.com/craftcms/cms/commit/b77cb3023bed4f4a37c11294c4d319ff9f598e1f
{ "nvd_published_at": "2023-05-27T04:15:25Z", "cwe_ids": [ "CWE-79" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-05-26T13:55:00Z" }