CVE-2020-5809
Medium
Description
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. An authenticated user can inject arbitrary JavaScript code into iframes when editing content using the TinyMCE rich-text editor, as TinyMCE is configured to allow iframes by default in Umbraco CMS.
SeverityMedium
CVSS5.4
Exploit probability—
Product
Umbraco Cms
PublishedDec 30, 2020
First seenDec 30, 2020
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| umbraco umbraco_cms | v ≤ 8.9.1 | — |
| UmbracoCms.CoreNuGet | v ≤ 8.9.1 | — |
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