VulnerabilityModified
CVE-2020-5809
A stored XSS vulnerability exists in Umbraco CMS <= 8.9.1 or current.
MEDIUM 5.4EPSS 0.68%
Does this matter?
Lower severity and a low EPSS score (0.68%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.68% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- umbraco/umbraco cms
- Source
- vulnreport@tenable.com
References
- https://www.tenable.com/security/research/tra-2020-59Exploit, Third Party Advisory
- https://www.tenable.com/security/research/tra-2020-59Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.