A reflected XSS vulnerability exists in Revive Adserver 5.4.1 and earlier versions..
Conclusion & alert: CVE-2023-38040 is rated High Exploit Risk (72.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.59%, 93th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.02% over the last day, indicating growing attacker interest. 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 | 2026-05-28 | 7.56% | 8.59% | +1.02% |
| 2 | 2026-03-28 | 5.71% | 7.56% | +1.85% |
| 3 | 2026-03-04 | — | 5.71% | — |
Full EPSS history (57 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| revive-adserver | revive_adserver | <= 5.4.1 | cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://hackerone.com/reports/1694171 | Exploit Issue Tracking Third Party Advisory |