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.
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.
| 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 ↗ |
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)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| plex | media_server | <= 0.9.9.2 | cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:* |