GitHub Advisoryadvisory · NuGet

GHSA-95qr-67rx-9pgh Umbraco CMS vulnerable to stored XSS

MEDIUM Published 2022-05-24 Modified 2023-08-23 Official page ↗
Aliases
CVE-2020-5809
Ecosystem
NuGet
Packages
UmbracoCms.Core
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weaknesses
CWE-79
Reviewed
2023-07-13

Affected packages

• NuGet UmbracoCms.Core: <= 8.9.1 (no fix yet)

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.

Related

Alias · CVE (1)

  • CVE-2020-5809 A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current. vulnerability

Weakness · CWE (1)

  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References