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TI-2020-04670 Aliases CVE-2020-5742GHSA-p5rm-fx86-wv2f

Improper Access Control in Plex Media Server prior to June 15, 2020 allows any origin to…

Priority MEDIUM 41Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Improper Access Control in Plex Media Server prior to June 15, 2020 allows any origin to execute cross-origin application requests.

Why it matters now

EPSS 0.01451 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Plex Media ServerPrior to June 15, 2020—No fix listedCNA
  • Plex Media Server Vendor— Affected Prior to June 15, 2020 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*before 2020-06-15VulnerablePlex
  • cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:* Versions before 2020-06-15 Vulnerable ·Plex

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5742
  2. 2026-10-03 Alias added: GHSA-p5rm-fx86-wv2f

References

Exploit 1

  • TI-2026-63829 Arbitrary file write in Plex Media Server enables code execution KEVCVSS 4.0HIGH 8.6
  • TI-2020-04669 Deserialization of untrusted data in Plex Media Server KEVCVSS 3.1HIGH 7.2
  • TI-2026-63827 Plex Media Server URL injection lets attackers call other plugins KEVCVSS 4.0MEDIUM 6.9
  • TI-2026-63828 Server-side request forgery in Plex Media Server KEVCVSS 4.0MEDIUM 5.3
  • TI-2026-63826 Server-side request forgery in Plex Media Server KEVCVSS 4.0MEDIUM 5.3
  • TI-2025-42857 Incorrect authorization in Plex Media Server CVSS 3.1HIGH 8.5
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences