# phoenix\_html (Hex) vulnerabilities

2 known vulnerabilities (2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://hex.pm/packages/phoenix_html

## Advisories (2)

### [CVE-2026-117645](https://cve.now/CVE-2026-117645): Phoenix.HTML vulnerable to attribute injection via unvalidated attribute names in attributes\_escape/1

- Severity: Medium 5.3
- Published: Oct 30, 2026
- Affected: from 1.0.0, fixed in 3.3.5; from 4.0.0, fixed in 4.4.0; from 1.0.0, fixed in 3.3.5; from 4.0.0, fixed in 4.4.0.

### [CVE-2021-46871](https://cve.now/CVE-2021-46871): tag.ex in Phoenix Phoenix.HTML (aka phoenix\_html) before 3.0.4 allows XSS in HEEx class attributes.

- Severity: Medium 6.1
- Published: Jan 10, 2023
- Affected: fixed in 3.0.4.

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