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Umbraco CMS XXE Vulnerability

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Oct 23, 2023

Package

nuget UmbracoCms.Web (NuGet)

Affected versions

< 7.7.3

Patched versions

7.7.3

Description

XML external entity (XXE) vulnerability in Umbraco CMS before 7.7.3 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka SSRF), related to Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype.aspx.cs.

References

Published by the National Vulnerability Database Oct 12, 2017
Published to the GitHub Advisory Database May 17, 2022
Reviewed Jul 26, 2023
Last updated Oct 23, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS score

0.069%
(32nd percentile)

Weaknesses

CVE ID

CVE-2017-15280

GHSA ID

GHSA-h2vq-7gf2-qw9v

Source code

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