What’s Vulnerable › Vulnerabilities

CVE-2021-20086

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-04-23 · updated 2026-06-17
• Weakness: CWE-1321

Description

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-bbq 1.2.1 allows a malicious user to inject properties into Object.prototype.

Affected products

• jquery-bbq: 1.2.1

References

• https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-bbq.md
• https://github.com/BlackFan/client-side-prototype-pollution/blob/master/pp/jquery-bbq.md
• https://security.netapp.com/advisory/ntap-20241108-0002/

Get alerted when CVE-2021-20086 or the next vulnerability affects your stack