Cross-site scripting (XSS) vulnerability in Oracle Application Express (formerly HTML DB) before 2.2.1 allows remote attackers to inject arbitrary HTML or web script via the WWV_FLOW_ITEM_HELP package. NOTE: it is likely that this issue overlaps one of the Oracle VulnIDs covered by CVE-2006-5351. Oracle has not publicly disputed claims by a reliable researcher that this has been fixed by the October 2006 CPU.
Conclusion & alert: CVE-2006-5599 is rated Moderate Risk (40.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.34%). 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 | 2026-06-15 | 1.24% | 1.34% | +0.09% |
| 2 | 2025-09-30 | 1.50% | 1.24% | -0.26% |
| 3 | 2025-06-16 | — | 1.50% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-5599: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5599 |