CVE-2023-30626 — Jellyfin is a free-software media system
Jellyfin is a free-software media system. Versions starting with 10.8.0 and prior to 10.8.10 and prior have a directory traversal vulnerability inside the `ClientLogController`, specifically `/ClientLog/Document`. When combined with a cross-site scripting vulnerability (CVE-2023-
Published
2023-04-24T20:06:39.400Z
Last modified
2025-02-12T16:34:36.816Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
Jellyfin is a free-software media system. Versions starting with 10.8.0 and prior to 10.8.10 and prior have a directory traversal vulnerability inside the `ClientLogController`, specifically `/ClientLog/Document`. When combined with a cross-site scripting vulnerability (CVE-2023-30627), this can result in file write and arbitrary code execution. Version 10.8.10 has a patch for this issue. There…
02Affected products
| Vendor | Product | Versions |
|---|
| jellyfin | jellyfin | >= 10.8.0, < 10.8.10 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
08Timeline
- Published: 2023-04-24T20:06:39.400Z
- Last modified: 2025-02-12T16:34:36.816Z
09References
- github.com — https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65m
- github.com — https://github.com/jellyfin/jellyfin-web/security/advisories/GHSA-89hp-h43h-r5pq
- github.com — https://github.com/jellyfin/jellyfin/pull/5918
- github.com — https://github.com/jellyfin/jellyfin/commit/82ad2633fdfb1c37a158057c7935f83e1129…
- github.com — https://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfc…
- github.com — https://github.com/jellyfin/jellyfin/releases/tag/v10.8.10
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