Static code injection vulnerability in guestbook.php in 1Book 1.0.1 and earlier allows remote attackers to upload arbitrary PHP code via the message parameter in an HTML webform, which is written to data.php.
Conclusion & alert: CVE-2008-2638 is rated High Exploit Risk (84.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.86%). 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 |
|---|---|---|---|---|
| 5736 | exploit_db | edb | 2008-06-03 | 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 | 5.48% | 3.86% | -1.62% |
| 2 | 2025-12-05 | 4.65% | 5.48% | +0.83% |
| 3 | 2025-07-31 | — | 4.65% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |