Cross-site scripting (XSS) vulnerability in Simple Machines Forum (SMF) 1.0 allows remote attackers to inject arbitrary web script via the size tag.
Conclusion & alert: CVE-2004-1996 is rated Exploit Available (52.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Core evidence: 2 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 |
|---|---|---|---|---|
| 24082 | exploit_db | edb | 2004-05-05 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | 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 | 2025-03-17 | 0.51% | 0.40% | -0.11% |
| 2 | 2024-12-17 | 0.35% | 0.51% | +0.15% |
| 3 | 2023-03-07 | — | 0.35% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| simple_machines | smf | 1.0_beta4.1 | cpe:2.3:a:simple_machines:smf:1.0_beta4.1:*:*:*:*:*:*:* |
| simple_machines | smf | 1.0_beta4p | cpe:2.3:a:simple_machines:smf:1.0_beta4p:*:*:*:*:*:*:* |
| simple_machines | smf | 1.0_beta5p | cpe:2.3:a:simple_machines:smf:1.0_beta5p:*:*:*:*:*:*:* |