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CVE-2026-96654 Plex Media Server URL injection

MediumCVSS 6.9 EPSS 1.9% CISA KEV added 2026-10-20 · due 2026-10-23 Exploited in the wild
Published
Updated
Exploit status
Exploited in the wild (confirmed)
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Description

Plex Media Server before 1.43.3.10861 does not correctly neutralize URL values included in 'searchOne,' allowing an attacker to call other plugins' functions and supply their own parameters.

CISA Known Exploited Vulnerability

Date added
2026-10-20
Due date (FCEB)
2026-10-23
Ransomware use
Unknown

Required action

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.

Affected products

ProductAffected versionsFixed in
Plex Media Server < 1.43.3.10861 1.43.3.10861

References

  • url third-party-advisory vdb-entry
  • url release-notes
  • url third-party-advisory
  • url third-party-advisory
  • www.cisa.gov government-resource us-government-resource