A vulnerability in the web-based management interface of Cisco Prime Infrastructure could allow an authenticated, remote attacker to conduct cross-site scripting attacks. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by submitting malicious input containing script or HTML content within requests that would stored within the application interface. A successful exploit could allow the attacker to conduct cross-site scripting attacks against other users of the affected application.
Conclusion & alert: CVE-2023-20257 is rated Low Risk (29.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.06% | 0.36% | +0.30% |
| 2 | 2025-06-07 | 0.04% | 0.06% | +0.02% |
| 3 | 2025-04-18 | — | 0.04% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | [email protected] |
| 4.8 | 3.1 | MEDIUM |
|
1.7 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | evolved_programmable_network_manager | < 7.1.1 | cpe:2.3:a:cisco:evolved_programmable_network_manager:*:*:*:*:*:*:*:* |
| cisco | prime_infrastructure | < 3.10.4 | cpe:2.3:a:cisco:prime_infrastructure:*:*:*:*:*:*:*:* |
| cisco | prime_infrastructure | 3.10.4 | cpe:2.3:a:cisco:prime_infrastructure:3.10.4:-:*:*:*:*:*:* |
| cisco | prime_infrastructure | 3.10.4 | cpe:2.3:a:cisco:prime_infrastructure:3.10.4:update_1:*:*:*:*:*:* |