board/admin/reguser.php in Chipmunk CMS 1.3 allows remote attackers to bypass authentication and gain administrator privileges via a direct request. NOTE: some of these details are obtained from third party information.
Conclusion & alert: CVE-2008-4921 is rated Moderate Risk (61.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.57%). Core evidence: EPSS rose +2.17% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 0.40% | 2.57% | +2.17% |
| 2 | 2025-03-17 | 0.88% | 0.40% | -0.48% |
| 3 | 2024-12-17 | — | 0.88% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| chipmunk_scripts | chipmunk_cms | 1.3 | cpe:2.3:a:chipmunk_scripts:chipmunk_cms:1.3:*:*:*:*:*:*:* |