CVE-2021-20087 - CVE House
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Status published High CVE-2021-20087

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in...

Vulnerability Description

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-deparam 0.5.1 allows a malicious user to inject properties into Object.prototype.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

jquery-deparam
Vulnerable Versions:
0.5.1

Timeline

Official Publish: April 23rd, 2021
Last Modified: August 14th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.