KEV Entry

CVE-2021-42567

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-42567

2021-12-07 21:10 UTC

Timestamps

2021-12-07

2021-12-07

Scope

KEVIntel entry: Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints. | Affected: n/a / n/a | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-42567', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-42567'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-42567'}

eae655b5-2c55-4e5f-99ab-e955bb992c33

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-23 14:06 UTC

2026-06-23 14:06 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2021-12-07T21:10:49.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": null,
  "cvss_severity": null,
  "epss_percentile": null,
  "epss_score": null,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "n/a",
  "title": "Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.",
  "used_in_malware": "unknown",
  "vendor": "n/a"
}
 -
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