An issue was discovered in concrete5 <= 5.6.3.4. The vulnerability exists due to insufficient filtration of user-supplied data (fID) passed to the "concrete5-legacy-master/web/concrete/tools/files/selector_data.php" URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
Conclusion & alert: CVE-2017-6908 is rated High Exploit Risk (62.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.19%). Core evidence: 1 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 |
|---|---|---|---|---|
| — | 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 | 0.34% | 1.19% | +0.86% |
| 2 | 2025-07-30 | 0.35% | 0.34% | -0.02% |
| 3 | 2025-03-30 | — | 0.35% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.0 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/96891 | Third Party Advisory VDB Entry |
| https://github.com/concrete5/concrete5-legacy/commit/62046f511fc02ad783ad170404c80db3c69f0408 | Patch Third Party Advisory |
| https://github.com/concrete5/concrete5-legacy/issues/1948 | Exploit Third Party Advisory |