CVE-2021-47776 — MEDIUM (5.3)

Vulnerability Description

Umbraco CMS v8.14.1 contains a server-side request forgery vulnerability that allows attackers to manipulate baseUrl parameters in multiple dashboard and help controller endpoints. Attackers can craft malicious requests to the GetContextHelpForPage, GetRemoteDashboardContent, and GetRemoteDashboardCss endpoints to trigger unauthorized server-side requests to external hosts.

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Umbraco	Umbraco Cms	8.14.1

Related Weaknesses (CWE)

CWE-918

References

https://our.umbraco.com/Product
https://releases.umbraco.com/all-releasesRelease Notes
https://www.exploit-db.com/exploits/50462ExploitVDB Entry

FAQ

What is CVE-2021-47776?

CVE-2021-47776 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Umbraco CMS v8.14.1 contains a server-side request forgery vulnerability that allows attackers to manipulate baseUrl parameters in multiple dashboard and help controller endpoints. Attackers can craft...

How severe is CVE-2021-47776?

CVE-2021-47776 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-47776?

Check the references section above for vendor advisories and patch information. Affected products include: Umbraco Umbraco Cms.