Cross-site scripting (XSS) vulnerability in adfs/ls in Active Directory Federation Services (AD FS) in Microsoft Windows Server 2008 SP2 and R2 SP1 and Server 2012 allows remote attackers to inject arbitrary web script or HTML via the wct parameter, aka "ADFS XSS Elevation of Privilege Vulnerability."
Conclusion & alert: CVE-2015-1757 is rated Moderate Risk (50.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 11.06%, 95th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
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 | 10.69% | 11.06% | +0.36% |
| 2 | 2025-09-16 | 12.41% | 10.69% | -1.72% |
| 3 | 2025-05-21 | — | 12.41% | — |
Full EPSS history (16 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 |
|---|---|---|---|
| microsoft | active_directory_federation_services | 2.0 | cpe:2.3:a:microsoft:active_directory_federation_services:2.0:*:*:*:*:*:*:* |
| microsoft | active_directory_federation_services | 2.1 | cpe:2.3:a:microsoft:active_directory_federation_services:2.1:*:*:*:*:*:*:* |