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Fencer Intel
high 7.5

CVE-2014-9304 json

Plex Media Server before 0.9.9.3 allows remote attackers to bypass the web server whitelist, conduct SSRF attacks, and execute arbitrary ad…

published 2014-12-07 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-9129

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.1%
EPSS 8.1% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

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 X-Plex-Url headers to system/proxy, which are inconsistently processed by the request handler in the backend web server.

Timeline

  1. First public exploit (EDB-31983)
  2. Published

Exploit prediction

8.11% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-31983 Plex Media Server 0.9.9.2.374-aa23a69 - Multiple Vulnerabilities webapps, 2014-02-28
  • sec-consult.com https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20140228-1_Plex_Media_Server_Authentication_bypass_local_file_disclosure_v10.txt referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/archive/1/531290 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.