CVE-2026-96654: medium-severity vulnerability in Plex Media Server
Plex Media Server URL injection
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
Prioritize patching. It under exploitation confirmed by CISA.
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.
Plex Media Server versions before 1.43.3.10861 do not properly handle URL values in a search feature, so an attacker can make the server run functions from other plugins using parameters they choose. Fixed in 1.43.3.10861.
Plex Media Server before 1.43.3.10861 fails to neutralize URL values passed to the 'searchOne' component (CWE-84, improper neutralization of encoded URI schemes). An attacker can invoke functions of other plugins and supply their own parameters. The description does not specify the attack vector or required privileges, and the CVSS score is 6.9 (MEDIUM).
In the same product, most dangerous first.