Cross-site scripting (XSS) vulnerability in Master Data Services (MDS) in Microsoft SQL Server 2012 SP1 and 2014 on 64-bit platforms allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "SQL Master Data Services XSS Vulnerability."
Conclusion & alert: CVE-2014-1820 is rated Moderate Risk (45.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 14.72%, 96th 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 | 21.38% | 14.72% | -6.66% |
| 2 | 2026-03-04 | 20.11% | 21.38% | +1.27% |
| 3 | 2026-03-03 | — | 20.11% | — |
Full EPSS history (40 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 | sql_server | 2012 | cpe:2.3:a:microsoft:sql_server:2012:sp1:x64:*:*:*:*:* |
| microsoft | sql_server | 2014 | cpe:2.3:a:microsoft:sql_server:2014:-:x64:*:*:*:*:* |