CVE-2026-96652Plex Media Server SSRF

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.

5.3 MEDIUMEPSS 11.88%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-10-21 13:09 UTC

OverviewCVSS details

5.3MEDIUMCVSS 4.0

Score source: cisa-cg (CNA)
NVD status: Analyzed
Published: Sep 23, 2026
Assigner: cisa-cg

Affected

Media Server (Plex)

Versions: before 1.43.3.10861
Fixed in: 1.43.3.10861

Exploitation

Public exploit: None listed
CISA KEV: Listed · Oct 20, 2026
KEV due date: Nov 3, 2026
Ransomware use: Unknown
SSVC: Exploitation none · Automatable no · Impact partial

EPSS · FIRST, scored Nov 7

11.88%chance of exploitation in 30 days

Higher than 96.12% of CVEs

CVSS 4.0 · cisa-cg (CNA)

5.3Medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Attack vector: Network
Attack complexity: Low
Attack requirements: None
Privileges required: Low
User interaction: None
Confidentiality impact: Low
Integrity impact: None
Availability impact: None
Confidentiality (other systems): None
Integrity (other systems): None
Availability (other systems): None

CVSS 3.1 · cisa-cg (CNA)

4.3Medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: Low
Integrity impact: None
Availability impact: None

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
5.3	MEDIUM	4.0cisa-cg (CNA)	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.3	MEDIUM	3.1cisa-cg (CNA)	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA required action

⚡ Known exploited · remediation due Nov 3, 2026

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Details

CVE ID: CVE-2026-96652
Status: Analyzed
Assigner (CNA): cisa-cg
Published: Sep 23, 2026
Last modified: 2026-10-21 13:09 UTC
Weaknesses: CWE-918 · Server-Side Request Forgery (SSRF)

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 07:17 UTC.