CVE-2025-64325

Description

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.

CVSS v3.1 Score

9.0

CRITICAL

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

CWE-116 CWE-116

Affected Products

Vendor	Product	Versions
emby	emby	< 4.8.1.0

References

Advisories & Patches

https://github.com/EmbySupport/Emby.Security/security/advisories/GHSA-2gwc-988r-2r7x https://github.com/EmbySupport/Emby.Security/security/advisories/GHSA-2gwc-988r-2r7x

Exploits

https://github.com/EmbySupport/Emby.Security/security/advisories/GHSA-2gwc-988r-2r7x https://github.com/EmbySupport/Emby.Security/security/advisories/GHSA-2gwc-988r-2r7x

Frequently Asked Questions

What is CVE-2025-64325? +

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. It has a CVSS v3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2025-64325? +

CVE-2025-64325 has a CVSS v3.1 score of 9.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-64325? +

CVE-2025-64325 affects products from emby, specifically: emby. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-64325? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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