KEV Entry

CVE-2021-20083

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2021-20083

2022-03-11 08:00 UTC

Timestamps

2022-03-11

2022-03-11

Scope

KEVIntel entry: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-plugin-query-object 2.2.3 allows a malicious... | Affected: jQuery / jquery-plugin-query-object | CVSS: 8.8 (HIGH) | EPSS: 0.02845 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2021-20083', 'url': 'https://www.cve.org/CVERecord?id=CVE-2021-20083'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2021-20083'}

d76544ca-fc11-400a-a630-e448451d3813

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:47 UTC

2026-06-19 12:47 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2022-03-11T08:00:34.000Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 8.8,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.85462,
  "epss_score": 0.02845,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "jquery-plugin-query-object",
  "title": "Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027) in jquery-plugin-query-object 2.2.3 allows a malicious...",
  "used_in_malware": "unknown",
  "vendor": "jQuery"
}
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