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Unrestricted Upload of File with Dangerous Type in Umbraco CMS

Moderate severity GitHub Reviewed Published Aug 2, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

nuget UmbracoCms (NuGet)

Affected versions

<= 8.5.3

Patched versions

8.5.4

Description

Umbraco CMS 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Package functionality.

References

Published by the National Vulnerability Database Mar 16, 2020
Reviewed May 4, 2021
Published to the GitHub Advisory Database Aug 2, 2021
Last updated Feb 1, 2023

Severity

Moderate
6.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weaknesses

CVE ID

CVE-2020-9472

GHSA ID

GHSA-j66f-h9hm-975m

Source code

No known source code
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