ServiceNow through San Diego Patch 4b and Patch 6 allows reflected XSS in the logout functionality.
Conclusion & alert: CVE-2022-38463 is rated Moderate Risk (58.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 48.13%, 98th 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 | 2026-03-23 | 48.27% | 48.13% | -0.15% |
| 2 | 2026-03-04 | 42.88% | 48.27% | +5.40% |
| 3 | 2026-03-01 | — | 42.88% | — |
Full EPSS history (47 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 |
|---|---|---|---|
| servicenow | servicenow | san_diego | cpe:2.3:a:servicenow:servicenow:san_diego:patch_4:*:*:*:*:*:* |
| servicenow | servicenow | san_diego | cpe:2.3:a:servicenow:servicenow:san_diego:patch_4a:*:*:*:*:*:* |
| servicenow | servicenow | san_diego | cpe:2.3:a:servicenow:servicenow:san_diego:patch_6:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1156793 | Vendor Advisory |