Arbitrary file upload in Umbraco CMS - CVE-2023-49279
Published: December 12, 2023 / Updated: December 13, 2023
Vulnerability identifier: #VU84111
CSH Severity: Medium
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2023-49279
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform XSS attack.
The vulnerability exists due to the application allows upload of SVG files with JavaScript code inside. A remote user can upload a specially crafted SVG file and perform XSS attacks.
Affected software
Umbraco CMS
How to mitigate CVE-2023-49279
Install updates from vendor's website.
Umbraco CMS - addressed in versions 7.15.11, 8.18.9, 10.7.0, 11.5.0, 12.2.0