CVE-2021-20087: Prototype Pollution in jquery-deparam

May 24, 2021 (updated August 14, 2025)

Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’) in jquery-deparam allows a malicious user to inject properties into Object.prototype.

References

github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-deparam.md
github.com/RetireJS/retire.js/blob/6da45fcb6a3425e55ee8181b2ac35168879bf086/repository/jsrepository-master.json
github.com/advisories/GHSA-xg68-chx2-253g
nvd.nist.gov/vuln/detail/CVE-2021-20087

Code Behaviors & Features

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