Craig Knudsen WebCalendar 1.1.0-CVS allows remote attackers to obtain sensitive information via a direct request to (1) includes/index.php, (2) tests/add_duration_test.php, (3) tests/all_tests.php, (4) groups.php, (5) nonusers.php, (6) includes/settings.php, (7) includes/init.php, (8) includes/settings.php.orig, (9) includes/js/admin.php, (10) includes/js/edit_entry.php, (11) includes/js/edit_layer.php, (12) includes/js/export_import.php, (13) includes/js/popups.php, (14) includes/js/pref.php, or (15) includes/menu/index.php, which reveal the path in various error messages.
Conclusion & alert: CVE-2006-1537 is rated Moderate Risk (46.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.97%). 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 | 2025-04-23 | 0.74% | 0.97% | +0.22% |
| 2 | 2025-03-30 | 1.04% | 0.74% | -0.30% |
| 3 | 2025-03-29 | — | 1.04% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| webcalendar | webcalendar | 1.1.0 | cpe:2.3:a:webcalendar:webcalendar:1.1.0:*:*:*:*:*:*:* |