CVE-2024-48927: umbraco cms Injection — Fix

Description

Umbraco, a free and open source .NET content management system, has a remote code execution issue in versions on the 13.x branch prior to 13.5.2, 10.x prior to 10.8.7, and 8.x prior to 8.18.15. There is a potential risk of code execution for Backoffice users when they “preview” SVG files in full screen mode. Versions 13.5.2, 10.8,7, and 8.18.15 contain a patch for the issue. As a workaround, derver-side file validation is available to strip script tags from file's content during the file upload process.

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CVSS v3.1 Score

4.6

MEDIUM

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

Weakness Type (CWE)

CWE-74 CWE-74

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
umbraco	umbraco_cms	8.0 — 8.18.15
umbraco	umbraco_cms	10.0 — 10.8.7
umbraco	umbraco_cms	13.0 — 13.5.2

References

Advisories & Patches

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-5955-cwv4-h7qh

Frequently Asked Questions

What is CVE-2024-48927? +

Umbraco, a free and open source .NET content management system, has a remote code execution issue in versions on the 13.x branch prior to 13.5.2, 10.x prior to 10.8.7, and 8.x prior to 8.18.15. There is a potential risk of code execution for Backoffice users when they “preview” SVG files in full screen mode. Versions 13.5.2, 10.8,7, and 8.18.15 contain a patch for the issue. As a workaround, derver-side file validation is available to strip script tags from file's content during the file upload process. It has a CVSS v3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2024-48927? +

CVE-2024-48927 has a CVSS v3.1 score of 4.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-48927? +

CVE-2024-48927 affects products from umbraco, specifically: umbraco_cms. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-48927? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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