Homarr is Vulnerable to Stored Cross-Site Scripting (XSS) and Possible Privilege Escalation via Malicious SVG Upload

Vulnerability Description

Homarr is an open-source dashboard. Prior to version 1.43.3, stored XSS vulnerability exists, allowing the execution of arbitrary JavaScript in a user's browser, with minimal or no user interaction required, due to the rendering of a malicious uploaded SVG file. This could be abused to add an attacker's account to the "credentials-admin" group, giving them full administrative access, if a user logged in as an administrator was to view the page which renders or redirects to the SVG. This issue has been patched in version 1.43.3.

References

• https://github.com/homarr-labs/homarr/security/advisories/GHSA-wj62-c5gr-2x53
• https://github.com/homarr-labs/homarr/commit/aaa23f37321be1e110f722b36889b2fd3bea2059