CVE-2014-9304

Exp

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.

Published: 2014-12-07 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2014-9304 is rated High Exploit Risk (82.2/100): CVSS High severity, with high exploitation likelihood (EPSS 8.11%, 94th percentile). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +4.24% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-9304

EDB-ID Source Kind Published Link
31983 exploit_db edb 2014-02-28 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-9304

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.86% 8.11% +4.24%
2 2026-05-18 3.39% 3.86% +0.48%
3 2026-02-08 3.39%

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-9304

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2014-9304

Affected software / configurations for CVE-2014-9304

Vendor Product Version Raw CPE
plex media_server <= 0.9.9.2 cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*

References for CVE-2014-9304

cvelogic Threat Intelligence