by Kastro
Paper/Archive/CVE-2025-64325

CVE-2025-64325

EmbySupport Emby.Security — Emby Server is Vulnerable to Remote Code Execution Through XSS in Admin Dashboard

EPSS 0.4%public exploitCVSS 9.0
critical.is priorityof 100
45
CVSS 9.0 (NVD)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 38.6.386 × 207.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Emby.SecurityEmby Server (Web App) < 4.8.1.0–CNA
Emby.SecurityEmby Server Beta (Web App) < 4.9.0.0-beta–CNA

Scores by source

NVD9.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
GitHub_M (CNA)8.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/EmbySupport/Emby.Security/security/advisories/GHSA-2gwc-988r-2r7x