WorldClient webmail in Alt-N MDaemon 8.1.3 allows remote attackers to prevent arbitrary users from accessing their inboxes via script tags in the Subject header of an e-mail message, which prevents the user from being able to access the Inbox folder, possibly due to a cross-site scripting (XSS) vulnerability.
Conclusion & alert: CVE-2005-4209 is rated High Exploit Risk (61.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.13%). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.59% over the last day, indicating growing attacker interest. 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 |
|---|---|---|---|---|
| 26779 | exploit_db | edb | 2005-12-12 | 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 | 2026-06-15 | 0.54% | 2.13% | +1.59% |
| 2 | 2025-03-30 | 0.41% | 0.54% | +0.14% |
| 3 | 2025-03-29 | — | 0.41% | — |
Full EPSS history (7 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 |
|---|---|---|---|
| alt-n | mdaemon | 8.1.3 | cpe:2.3:a:alt-n:mdaemon:8.1.3:*:*:*:*:*:*:* |
| alt-n | worldclient | 8.1.3 | cpe:2.3:a:alt-n:worldclient:8.1.3:*:*:*:*:*:*:* |