XSS in Umbraco Umbraco-Cms
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000
Affected products
- Umbraco Umbraco-Cms — versions >= 13.0.0, < 13.5.2, >= 10.0.0, < 10.8.7, >= 8.0.0, < 8.18.15
- Umbraco Cms
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-5955-cwv4-h7qh (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-48927?
- CVE-2024-48927 is a medium-severity vulnerability in Umbraco Umbraco-Cms, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.6/10. Published 2024-10-22.
- How severe is CVE-2024-48927?
- Medium severity. CVSS v3 base score is 4.6 out of 10.
- Is CVE-2024-48927 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.