Session fixation vulnerability in Macromedia JRun 4.0 allows remote attackers to hijack user sessions by pre-setting the user session ID information used by the session server.
Conclusion & alert: CVE-2004-2182 is rated Moderate Risk (59.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.79%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2025-03-17 | 0.82% | 1.79% | +0.97% |
| 2 | 2024-09-17 | 0.41% | 0.82% | +0.42% |
| 3 | 2024-04-25 | — | 0.41% | — |
Full EPSS history (8 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 |
|---|---|---|---|
| macromedia | jrun | 4.0 | cpe:2.3:a:macromedia:jrun:4.0:*:*:*:*:*:*:* |
| macromedia | jrun | 4.0 | cpe:2.3:a:macromedia:jrun:4.0:sp1:*:*:*:*:*:* |
| macromedia | jrun | 4.0 | cpe:2.3:a:macromedia:jrun:4.0:sp1a:*:*:*:*:*:* |
| macromedia | jrun | 4.0_build_61650 | cpe:2.3:a:macromedia:jrun:4.0_build_61650:*:*:*:*:*:*:* |