Cross-site scripting (XSS) vulnerability in viewtopic.php for phpBB allows remote attackers to insert arbitrary web script via the topic_id parameter.
Conclusion & alert: CVE-2003-0484 is rated Moderate Risk (50/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.21%). 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 | 0.87% | 1.21% | +0.34% |
| 2 | 2025-03-17 | 0.36% | 0.87% | +0.50% |
| 3 | 2023-12-07 | — | 0.36% | — |
Full EPSS history (5 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 | — | cpe:2.3:a:phpbb_group:phpbb:*:*:*:*:*:*:*:* |