CVE-2023-30627 jellyfin-web has a stored cross-site scripting vulnerability in devices.js

What is CVE-2023-30627?

CVE-2023-30627 is a critical cross-site scripting vulnerability in jellyfin-web, published on 24 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2023-30627?

It affects 1 product.

Products include Jellyfin Jellyfin.

How do I fix CVE-2023-30627?

No fix has been published for CVE-2023-30627 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-30627 being exploited?

There is no known exploitation of CVE-2023-30627 in the wild and no public exploit code.

Other vulnerabilities in jellyfin-web

• CVE-2026-35031 Jellyfin: Potential RCE via subtitle upload path traversal + .strm chain Critical 10.0
• CVE-2026-31852 Jellyfin Possible Organization/Secret Compromise from dangerous CI implementation Critical 10.0
• CVE-2026-35033 Jellyfin: Potential SSRF + Arbitrary file read via stream argument injection Critical 9.3
• CVE-2023-30626 Jellyfin vulnerable to directory traversal and file write causing arbitrary code execution High 8.8
• CVE-2022-35909 Incorrect Access Control and Cross Site Scripting in Jellyfin High 8.8

Sources

• CVE record
• NVD
• OSV
• How this page is made