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CVE-2021-4229
ua-parser-js Crypto Mining backdoor
Medium5.0EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- VulDB
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 3.1 | Medium5.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
- affected 0.7.29
- affected 0.8.0
- affected 1.0.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmua-parser-jsGHSA-pjwm-rvh2-c87w (opens in a new tab)
References (3)
- https://github.com/advisories/GHSA-pjwm-rvh2-c87w (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/faisalman/ua-parser-js/issues/536 (opens in a new tab)x_refsource_MISCx_transferred
- https://vuldb.com/?id.185453 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-pjwm-rvh2-c87w (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-4229)Record last updated .