Cross-site request forgery (CSRF) vulnerability in index.php in Simple Machines Forum (SMF) 1.0 before 1.0.15 and 1.1 before 1.1.7 allows remote attackers to hijack the authentication of admins for requests that install packages via the package parameter in an install2 action.
Conclusion & alert: CVE-2008-6657 is rated High Exploit Risk (62.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.14%). 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 |
|---|---|---|---|---|
| 6993 | exploit_db | edb | 2008-11-04 | 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 | 2026-06-15 | 2.74% | 1.14% | -1.60% |
| 2 | 2026-05-28 | 2.15% | 2.74% | +0.59% |
| 3 | 2026-04-07 | — | 2.15% | — |
Full EPSS history (9 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 |
|---|---|---|---|
| simple_machines | simple_machines_forum | 1.0.5 | cpe:2.3:a:simple_machines:simple_machines_forum:1.0.5:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.0.6 | cpe:2.3:a:simple_machines:simple_machines_forum:1.0.6:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.0.7 | cpe:2.3:a:simple_machines:simple_machines_forum:1.0.7:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.0.11 | cpe:2.3:a:simple_machines:simple_machines_forum:1.0.11:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.0.12 | cpe:2.3:a:simple_machines:simple_machines_forum:1.0.12:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.1 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.1:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.2 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.2:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.3 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.3:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.4 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.4:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.5 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.5:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1.6 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1.6:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1_rc1 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1_rc1:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1_rc2 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1_rc2:*:*:*:*:*:*:* |
| simple_machines | simple_machines_forum | 1.1_rc3 | cpe:2.3:a:simple_machines:simple_machines_forum:1.1_rc3:*:*:*:*:*:*:* |