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CVE-2021-21185
Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker who convinced a user to install a…
Medium4.3EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- Chrome
Description
Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome Extension.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.3% · top 30% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
- Insufficient policy enforcement
Affected products
References (7)
- https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html (opens in a new tab)x_refsource_MISCx_transferred
- https://crbug.com/1100748 (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2021-c88a96bd4b (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2021-4740239e28 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2021-78547312f2 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-4886 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- GLSA-202104-08 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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 Advisories (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-2021-21185)Record last updated .