What is GHSA-xg68-chx2-253g?

GHSA-xg68-chx2-253g is a security advisory published by GitHub Security Advisories with High severity. Prototype Pollution in jquery-deparam

Which CVE IDs does GHSA-xg68-chx2-253g cover?

GHSA-xg68-chx2-253g covers the following CVE IDs: CVE-2021-20087. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xg68-chx2-253g?

GHSA-xg68-chx2-253g has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

Which products are affected by GHSA-xg68-chx2-253g?

GHSA-xg68-chx2-253g affects 1 product, including: npm/jquery-deparam:\u003c= 0.5.3.

GHSA-xg68-chx2-253gHighCVSS 8.8

Prototype Pollution in jquery-deparam

Vendor

GitHub Security Advisories

Published

May 24, 2021

Last Modified

August 14, 2025

🔗 CVE IDs covered (1)

CVE-2021-20087 →

📋 Description

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

🎯 Affected products1

npm/jquery-deparam:<= 0.5.3

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2021-20087
https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-deparam.md
https://github.com/RetireJS/retire.js/blob/6da45fcb6a3425e55ee8181b2ac35168879bf086/repository/jsrepository-master.json#L824-L842
https://github.com/advisories/GHSA-xg68-chx2-253g