RCE in Jellyfin
CVE-2023-48702
Jellyfin is a system for managing and streaming media. Prior to version 10.8.13, the `/System/MediaEncoder/Path` endpoint executes an arbitrary file using `ProcessStartInfo` via the `ValidateVersion` function. A malicious administrator can setup a network share and supply a UNC path to `/System/MediaEncoder/Path` which points to an executable on the network share, causing Jellyfin server to run the executable in the local context. The endpoint was removed in version 10.8.13.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Jellyfin — versions < 10.8.13
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Exploit, x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-48702?
- CVE-2023-48702 is a high-severity vulnerability in Jellyfin, classified under Command Injection. CVSS score: 7.2/10. Published 2023-12-13.
- How severe is CVE-2023-48702?
- High severity. CVSS v3 base score is 7.2 out of 10.