SSRF in Plex Media Server

CVE-2026-96652

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-96652?
CVE-2026-96652 is a medium-severity vulnerability in Plex Media Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-09-23.
How severe is CVE-2026-96652?
Medium severity. CVSS v3 base score is 4.3 out of 10.