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VulnerabilityPublished Updated

CVE-2025-46383: Emby Windows · Cross-site Scripting

Affects Emby WindowsSource CVE Database V5

0

Not known to be exploited · CVSS 6.1 Medium.

Data as of 26 Oct 2026, 15:59 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Emby WindowsAffected
  • =4.8
Fixed in–

AI-suggested

To mitigate this vulnerability, European organizations should first verify if they are running Emby server version 4.8 on Windows and consider upgrading to a patched version once available. In the absence of an official patch, organizations can implement web application firewalls (WAFs) with rules to detect and block typical XSS payloads targeting Emby endpoints. Network segmentation should be enforced to limit access to the Emby server from untrusted networks. User education is critical to reduce the risk of successful phishing attacks that require user interaction. Additionally, administrators can review and restrict the types of inputs accepted by the Emby server, applying strict input validation and output encoding where possible. Monitoring logs for unusual requests or error messages related to input handling can help detect attempted exploitation. Finally, disabling or limiting the exposure of the Emby web interface to only trusted internal networks until a patch is available can reduce attack surface.

Description

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

References

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