Vulnerability

CVE-2020-5809

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CVSS Score 5.4 medium

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79

References

https://www.tenable.com/security/research/tra-2020-59
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-5809

[CVE-2020-5809] CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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.

See UmbracoCms package information