KEV Entry

CVE-2021-4458

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-4458

2026-06-06 00:00 UTC

Timestamps

2026-06-06

2026-06-06

Scope

KEVIntel entry: Modern Events Calendar Lite <= 6.3.0 - Unauthenticated SQL Injection | Affected: webnus / Modern Events Calendar Lite | CVSS: 5.9 (MEDIUM) | EPSS: 0.00354 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-4458', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-4458'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-4458'}

4eb36132-db7f-4e86-9b32-d5dfd06e7068

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:03 UTC

2026-06-23 14:03 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-06T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 5.9,
  "cvss_severity": "MEDIUM",
  "epss_percentile": 0.27051,
  "epss_score": 0.00354,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "Modern Events Calendar Lite",
  "title": "Modern Events Calendar Lite \u003c= 6.3.0 - Unauthenticated SQL Injection",
  "used_in_malware": "unknown",
  "vendor": "webnus"
}
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