Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Plex Media_Server
cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*
|
— |
1.43.0.10861
|
References 5
https://forums.plex.tv/t/plex-media-server/30447/711
9119a7d8-5eab-497f-8521-727c672e3725
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026…
9119a7d8-5eab-497f-8521-727c672e3725
https://www.cve.org/CVERecord?id=CVE-2026-96652
9119a7d8-5eab-497f-8521-727c672e3725
https://zmain.info/blog/plex2shell
9119a7d8-5eab-497f-8521-727c672e3725
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026…
134c704f-9b21-4f2e-91b3-4a467353bcc0