Directory traversal vulnerability in index.php in Exponent CMS 0.96.3 allows remote attackers to read and execute arbitrary local files via a .. (dot dot) sequence in the view parameter in the show_view action in the calendarmodule module, as demonstrated by executing PHP code through session files.
Conclusion & alert: CVE-2006-4963 is rated High Exploit Risk (73.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.99%, 93th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 2391 | exploit_db | edb | 2006-09-19 | 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 | 2026-06-21 | 6.94% | 6.99% | +0.05% |
| 2 | 2026-06-15 | 9.88% | 6.94% | -2.93% |
| 3 | 2025-05-12 | — | 9.88% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.4 | 2.0 | MEDIUM |
|
10.0 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| exponent | exponent_cms | 0.96.3 | cpe:2.3:a:exponent:exponent_cms:0.96.3:*:*:*:*:*:*:* |