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Potential Code Execution Risk When Viewing SVG Files in Full Screen in Backoffice

Moderate
bergmania published GHSA-5955-cwv4-h7qh Oct 22, 2024

Package

nuget Umbraco.Cms (NuGet)

Affected versions

10.0.0 - 10.8.6
13.0.0 - 13.5.1

Patched versions

10.8.7
13.5.2
nuget UmbracoCms (NuGet)
8.0.0 - 8.18.14
8.18.15

Description

Impact

There is a potential risk of code execution for Backoffice users when they “preview” SVG files in full screen mode.

Workarounds

Server-side file validation is available to strip script tags from file's content during the file upload process.

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
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
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:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVE ID

CVE-2024-48927

Weaknesses

No CWEs