PHP remote file inclusion vulnerability in includes/functions_mod_user.php in the ACP User Registration (MMW) 1.00 module for phpBB allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter.
Conclusion & alert: CVE-2006-5390 is rated High Exploit Risk (69.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.91%). 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 |
|---|---|---|---|---|
| 2551 | exploit_db | edb | 2006-10-13 | 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 | 5.08% | 2.91% | -2.17% |
| 2 | 2025-09-06 | 2.63% | 5.08% | +2.45% |
| 3 | 2025-06-06 | — | 2.63% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-5390: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5390 |
: This vulnerability is addressed in the following product release: phpBB, ACP User Registration, 1.0.1
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| phpbb | acp_user_registration_module | 1.00 | cpe:2.3:a:phpbb:acp_user_registration_module:1.00:*:*:*:*:*:*:* |