Cross-site scripting (XSS) vulnerability in Calcium40.pl in Brown Bear Software Calcium 3.10 and 4.0.4 allows remote attackers to inject arbitrary web script or HTML via the CalendarName parameter in a ShowIt action.
Conclusion & alert: CVE-2008-2507 is rated Exploit Available (56.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.56%). Core evidence: 3 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 |
|---|---|---|---|---|
| 31858 | exploit_db | edb | 2008-05-28 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | 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 | 2026-05-22 | 0.29% | 0.56% | +0.27% |
| 2 | 2025-07-19 | 0.16% | 0.29% | +0.13% |
| 3 | 2025-03-30 | — | 0.16% | — |
Full EPSS history (8 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 | Product | Version | Raw CPE |
|---|---|---|---|
| brown_bear_software | calcium | 3.10 | cpe:2.3:a:brown_bear_software:calcium:3.10:*:*:*:*:*:*:* |
| brown_bear_software | calcium | 4.0.4 | cpe:2.3:a:brown_bear_software:calcium:4.0.4:*:*:*:*:*:*:* |