High severity8.8OSV Advisory· Published Apr 23, 2021· Updated Jun 17, 2026
CVE-2021-20083
CVE-2021-20083
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
jquery-query-objectnpm | <= 2.2.3 | — |
Affected products
2- Range: 2.1.7, 2.1.8, 2.2.0, …
Patches
Vulnerability mechanics
References
8- github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-query-object.mdnvdExploitThird Party AdvisoryWEB
- packetstormsecurity.com/files/166299/WordPress-Core-5.9.0-5.9.1-Cross-Site-Scripting.htmlnvdThird Party AdvisoryVDB EntryWEB
- github.com/advisories/GHSA-q9xg-h756-8689ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-20083ghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7CR6VGITIB2TXXZ6B5QRRWPU5S4BXQPDghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IJX6NVXSRN3RX3YUVEJQ4WUTQSDL3DSRghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7CR6VGITIB2TXXZ6B5QRRWPU5S4BXQPD/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IJX6NVXSRN3RX3YUVEJQ4WUTQSDL3DSR/nvd
News mentions
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