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HIGH

CVE-2020-5742

CVSS v3

8.8

HIGH

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

Published
2020-06-15

Frequently asked questions

What is CVE-2020-5742?

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

Is CVE-2020-5742 actively exploited?

Active exploitation of CVE-2020-5742 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5742?

CVE-2020-5742 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2020-5742 affecting your environment?

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