{"affected":[{"affectedData":[{"product":"jquery-plugin-query-object","vendor":"n/a","versions":[{"status":"affected","version":"2.2.3"}]}],"source":"vulnreport@tenable.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:jquery-plugin-query-object_project:jquery-plugin-query-object:2.2.3:*:*:*:*:*:*:*","matchCriteriaId":"D2ADE6D8-C532-4BA8-84CB-62E7C3500D61","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-plugin-query-object 2.2.3 allows a malicious user to inject properties into Object.prototype."},{"lang":"es","value":"Una Modificación Controlada Inapropiadamente de Object Prototype Attributes (\"Prototype Pollution\") en jquery-plugin-query-object versión 2.2.3, permite a un usuario malicioso inyectar propiedades en Object.prototype"}],"id":"CVE-2021-20083","lastModified":"2026-06-17T03:33:14.783","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"PARTIAL","baseScore":6.5,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":8.0,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-04-23T19:15:09.163","references":[{"source":"vulnreport@tenable.com","tags":["Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/166299/WordPress-Core-5.9.0-5.9.1-Cross-Site-Scripting.html"},{"source":"vulnreport@tenable.com","tags":["Exploit","Third Party Advisory"],"url":"https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-query-object.md"},{"source":"vulnreport@tenable.com","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7CR6VGITIB2TXXZ6B5QRRWPU5S4BXQPD/"},{"source":"vulnreport@tenable.com","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJX6NVXSRN3RX3YUVEJQ4WUTQSDL3DSR/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"url":"http://packetstormsecurity.com/files/166299/WordPress-Core-5.9.0-5.9.1-Cross-Site-Scripting.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"url":"https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-query-object.md"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7CR6VGITIB2TXXZ6B5QRRWPU5S4BXQPD/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJX6NVXSRN3RX3YUVEJQ4WUTQSDL3DSR/"}],"sourceIdentifier":"vulnreport@tenable.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-1321"}],"source":"nvd@nist.gov","type":"Primary"}]}