PT-2026-52065 · Jellyfin · Jellyfin
CVE-2026-49220
·
Published
2026-06-24
·
Updated
2026-06-25
CVSS v3.1
5.7
Medium
| Vector | AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Jellyfin versions prior to 10.11.9
Description
A Cross-Site Scripting (XSS) issue exists where a non-privileged user can execute arbitrary Javascript within the session of a logged-in Administrative user. This occurs because the
Client header used during an AuthenticateByName request can contain arbitrary HTML and Javascript. The malicious code is executed when an administrator views the Access tab of the affected user within the dashboard.Recommendations
Update to version 10.11.9.
Exploit
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Jellyfin