Jellyfin
CVE-2023-30627
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. |
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Alert meAnalysisAI
jellyfin-web is the web client for Jellyfin, a free-software media system. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. jellyfin-web is the web client for Jellyfin, a free-software media system. Starting in version 10.1.0 and prior to version 10.8.10, a stored cross-site scripting vulnerability in device.js can be used to make arbitrary calls to the REST endpoints with admin privileges. When combined with CVE-2023-30626, this results in remote code execution on the Jellyfin instance in the context of the user who's running it. This issue is patched in version 10.8.10. There are no known workarounds. Affected products include: Jellyfin. Version information: version 10.1.0.
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
jellyfin-web is the web client for Jellyfin, a free-software media system. Starting in version 10.1.0 and prior to version 10.8.10, a stored cross-site scripting vulnerability in device.js can be used to make arbitrary calls to the REST endpoints with admin privileges. When combined with CVE-2023-30626, this results in remote code execution on the Jellyfin instance in the context of the user who's running it. This issue is patched in version 10.8.10. There are no known workarounds.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
Jellyfin is a Free Software Media System for managing and streaming media. Rated high severity (CVSS 8.8), this vulnerab
In Jellyfin before 10.8, the /users endpoint has incorrect access control for admin functionality. Rated high severity (
Jellyfin is a free-software media system. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, lo
Jellyfin up to v10.7.7 was discovered to contain a Server-Side Request Forgery (SSRF) via the component /Repositories. R
Jellyfin is a system for managing and streaming media. Rated high severity (CVSS 7.2), this vulnerability is remotely ex
Jellyfin is a Free Software Media System. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable,
Arbitrary code execution in Jellyfin iOS GitHub Actions workflow. CVSS 10.0.
Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple ap
In Jellyfin 10.8.x through 10.8.3, the name of a playlist is vulnerable to stored XSS. Rated medium severity (CVSS 5.4),
In Jellyfin 10.8.x through 10.8.3, the name of a collection is vulnerable to stored XSS. Rated medium severity (CVSS 5.4
In Jellyfin before 10.8, stored XSS allows theft of an admin access token. Rated medium severity (CVSS 5.4), this vulner
Arbitrary file read via ffmpeg argument injection in Jellyfin media server versions before 10.11.7 allows unauthenticate
Exploit-DB