CVE-2023-48313

Name: CVE-2023-48313
Creator: NVD / NIST
Published: 2023-12-12T18:15:22.933+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2023-48313 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Umbraco is an ASP.NET content management system (CMS). Starting in 10.0.0 and prior to versions 10.8.1 and 12.3.4, Umbraco contains a cross-site scripting (XSS) vulnerability enabling attackers to bring malicious content into a website or application. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

Umbraco is an ASP.NET content management system (CMS). Starting in 10.0.0 and prior to versions 10.8.1 and 12.3.4, Umbraco contains a cross-site scripting (XSS) vulnerability enabling attackers to bring malicious content into a website or application. Versions 10.8.1 and 12.3.4 contain a patch for this issue.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.43%

34.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Umbraco	Umbraco Cms	>= 10.0.0, < 10.8.1
Umbraco	Umbraco Cms	>= 12.0.0, < 12.3.4

References

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-v98m-398x-269rVendor Advisory
https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-v98m-398x-269rVendor Advisory

Timeline

Published: Dec 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-48313?

How severe is CVE-2023-48313?

CVE-2023-48313 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2023-48313?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-48313?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST