export_handler.php in WebCalendar 1.0.1 allows remote attackers to overwrite WebCalendar data files via a modified id parameter.
Conclusion & alert: CVE-2005-3961 is rated Moderate Risk (48.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.47%). 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 | 2025-04-25 | 1.34% | 1.47% | +0.12% |
| 2 | 2025-03-30 | 1.92% | 1.34% | -0.57% |
| 3 | 2025-03-29 | — | 1.92% | — |
Full EPSS history (8 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 | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2005-3961 medium priority: Ubuntu including 1 source packages (webcalendar), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 2, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2005-3961 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| webcalendar | webcalendar | 1.0.1 | cpe:2.3:a:webcalendar:webcalendar:1.0.1:*:*:*:*:*:*:* |