register.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to create arbitrary accounts via the "[NR]" sequence in the signature field, which is used to separate multiple records.
Conclusion & alert: CVE-2006-3206 is rated Low Risk (38.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.32%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 2025-03-30 | 0.36% | 0.32% | -0.04% |
| 2 | 2025-03-29 | 0.28% | 0.36% | +0.08% |
| 3 | 2023-03-07 | — | 0.28% | — |
Full EPSS history (4 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] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ultimate_php_board | ultimate_php_board | 1.8 | cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8:*:*:*:*:*:*:* |
| ultimate_php_board | ultimate_php_board | 1.8.2 | cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.8.2:*:*:*:*:*:*:* |
| ultimate_php_board | ultimate_php_board | 1.9 | cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9:*:*:*:*:*:*:* |
| ultimate_php_board | ultimate_php_board | 1.9.6 | cpe:2.3:a:ultimate_php_board:ultimate_php_board:1.9.6:*:*:*:*:*:*:* |