CVE-2021-4229: ua-parser-js Crypto Mining backdoor

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-05-24 · updated 2026-06-17
Weakness: CWE-912

Description

A vulnerability was found in ua-parser-js 0.7.29/0.8.0/1.0.0. It has been rated as critical. This issue affects the crypto mining component which introduces a backdoor. Upgrading to version 0.7.30, 0.8.1 and 1.0.1 is able to address this issue. It is recommended to upgrade the affected component.

Affected products

ua-parser-js: 0.7.29, 0.8.0, 1.0.0

References

https://github.com/advisories/GHSA-pjwm-rvh2-c87w
https://github.com/faisalman/ua-parser-js/issues/536
https://vuldb.com/?id.185453
https://github.com/advisories/GHSA-pjwm-rvh2-c87w
https://github.com/faisalman/ua-parser-js/issues/536
https://vuldb.com/?id.185453

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