CVE-2025-64325 HIGH

CVE-2025-64325: Emby Server is Vulnerable to Remote Code Execution Through XSS in Admin Dashboard

Vendor Embysupport
Product Emby.Security
Weakness CWE-79 · XSS
Published November 18, 2025
Last update November 19, 2025
View on NVD All CVEs

CVSS base score

8.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Emby Server is a personal media server. Prior to version 4.8.1.0 and prior to Beta version 4.9.0.0-beta, a malicious user can send an authentication request with a manipulated X-Emby-Client value, which gets added to the devices section of the admin dashboard without sanitization. This issue has been patched in version 4.8.1.0 and Beta version 4.9.0.0-beta.

Key dates

02Disclosure timeline

November 18, 2025 CVE published
November 19, 2025 Record updated