Multiple cross-site scripting (XSS) vulnerabilities in PhpBB 2.0.8 allow remote attackers to inject arbitrary web script or HTML via (1) the cat_title parameter in index.php, (2) the faq[0][0] parameter in lang_faq.php as accessible from faq.php, or (3) the faq[0][0] parameter in lang_bbcode.php as accessible from faq.php.
Conclusion & alert: CVE-2004-0730 is rated Moderate Risk (51.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.48%). 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 | 1.63% | 1.48% | -0.16% |
| 2 | 2025-03-30 | 1.68% | 1.63% | -0.05% |
| 3 | 2025-03-29 | — | 1.68% | — |
Full EPSS history (6 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 | Product | Version | Raw CPE |
|---|---|---|---|
| phpbb_group | phpbb | 2.0.8 | cpe:2.3:a:phpbb_group:phpbb:2.0.8:*:*:*:*:*:*:* |
| phpbb_group | phpbb | 2.0.8a | cpe:2.3:a:phpbb_group:phpbb:2.0.8a:*:*:*:*:*:*:* |