Directory traversal vulnerability in down.php in MyBackup 1.4.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the filename parameter.
Conclusion & alert: CVE-2009-4978 is rated High Exploit Risk (64.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.92%). Core evidence: 1 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 |
|---|---|---|---|---|
| 9365 | exploit_db | edb | 2009-08-05 | 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 | 2026-06-23 | 2.98% | 2.92% | -0.06% |
| 2 | 2026-06-15 | 1.70% | 2.98% | +1.28% |
| 3 | 2025-05-04 | — | 1.70% | — |
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] |
| URL | Tags |
|---|---|
| http://secunia.com/advisories/36106 | Vendor Advisory |
| http://www.exploit-db.com/exploits/9365 | |
| http://www.vupen.com/english/advisories/2009/2165 | Vendor Advisory |