Cross-site scripting vulnerability in Event Calendar WD version 1.1.21 and earlier allows remote authenticated attackers to inject arbitrary web script or HTML via unspecified vectors.
Conclusion & alert: CVE-2018-16164 is rated Low Risk (30.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). 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 | 2025-03-30 | 12.50% | 0.21% | -12.29% |
| 2 | 2025-03-29 | 0.21% | 12.50% | +12.29% |
| 3 | 2025-03-24 | — | 0.21% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.4 | 3.0 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| web-dorado | event_calendar_wd | <= 1.1.21 | cpe:2.3:a:web-dorado:event_calendar_wd:*:*:*:*:*:wordpress:*:* |
| URL | Tags |
|---|---|
| https://jvn.jp/en/jp/JVN75738023/index.html | Third Party Advisory |
| https://plugins.trac.wordpress.org/changeset/1961423/ | Third Party Advisory |
| https://wordpress.org/plugins/event-calendar-wd/#developers | Release Notes |
| https://wpvulndb.com/vulnerabilities/9199 | Third Party Advisory |