CVE-2021-46871
XSS in HEEx class attributes
6.1
MEDIUM
CVSS 3.1
EPSS 0.23%
Description
The `class` attribute was not protected against XSS attacks when using HEEx.
How to fix CVE-2021-46871
To remediate CVE-2021-46871, upgrade the affected package to a fixed version below.
- Hex/phoenix_html—upgrade to 3.0.4 or later
- Hex/phoenix_html—upgrade to 3.0.4 or later
- —upgrade to 3.0.4 or later
Is CVE-2021-46871 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 3.0.4
- from 0, < 3.0.4
- from 0, < 3.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |