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Case File

CVE-2020-5809

MEDIUM · CVSS 5.4 EPSS 0.68%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-12-30 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.4. It affects Java. Exploitation may require the attacker to be authenticated.

CVE
CVE-2020-5809
Severity
MEDIUM
CVSS
5.4
EPSS
0.68%
Java

Original NVD 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 CVEs

Other vulnerabilities affecting the same vendor(s)