Plex operates a media server platform widely deployed in home and small-business environments for streaming music, video, and photos, where its internet-facing nature and authentication mechanisms present a concentrated attack surface. Vulnerabilities affecting the vendor skew toward serious outcomes and frequently acquire public exploit code; the vendor also carries a moderate tendency toward confirmed in-the-wild exploitation. The recurring exposure centers on authorization and access-control weaknesses—including improper authorization, path traversal, untrusted deserialization, and XXE—that reflect the challenges of building a feature-rich media-serving application with remote access. Current exploitation activity, severity distribution, and vulnerability counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Plex over time
Signals from CVEs in this vendor scope (15 CVEs).
15 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2020-5741HIGH Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code. | May 8, 2020 | 7.2 | 94 | YES | YES |
CVE-2018-13415CRITICAL In Plex Media Server 1.13.2.5154, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attack | Aug 13, 2018 | 9.8 | 61 | NO | YES |
CVE-2025-34158HIGH Plex Media Server (PMS) 1.41.7.x through 1.42.0.x before 1.42.1 is affected by incorrect resource transfer between spheres because /myplex/account provides the credentials of the s | Aug 21, 2025 | 8.5 | 32 | NO | NO |
CVE-2021-33959HIGH Plex media server 1.21 and before is vulnerable to ddos reflection attack via plex service. | Jan 18, 2023 | 7.5 | 31 | NO | NO |
CVE-2014-9304HIGH Plex Media Server before 0.9.9.3 allows remote attackers to bypass the web server whitelist, conduct SSRF attacks, and execute arbitrary administrative actions via multiple crafted | Dec 7, 2014 | 7.5 | 31 | NO | YES |
CVE-2020-5742HIGH Improper Access Control in Plex Media Server prior to June 15, 2020 allows any origin to execute cross-origin application requests. | Jun 15, 2020 | 8.8 | 28 | NO | NO |
CVE-2019-19141HIGH The Camera Upload functionality in Plex Media Server through 1.18.2.2029 allows remote authenticated users to write files anywhere the user account running the Plex Media Server ha | Dec 19, 2019 | 8.8 | 27 | NO | NO |
CVE-2014-9181MEDIUM Multiple directory traversal vulnerabilities in Plex Media Server before 0.9.9.3 allow remote attackers to read arbitrary files via a .. (dot dot) in the URI to (1) manage/ or (2) | Dec 2, 2014 | 5.0 | 26 | NO | YES |
CVE-2025-69414HIGH Plex Media Server (PMS) through 1.42.2.10156 allows retrieval of a permanent access token via a /myplex/account call with a transient access token. | Jan 2, 2026 | 7.1 | 25 | NO | NO |
CVE-2025-69415HIGH In Plex Media Server (PMS) through 1.42.2.10156, ability to access /myplex/account with a device token is not properly aligned with whether the device is currently associated with | Jan 2, 2026 | 7.1 | 24 | NO | NO |
Signals from CVEs in this vendor scope (15 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Plex.
Media articles that mention a CVE ID that affects a product developed by Plex — matched by CVE ID, not by vendor name.