What is CVE-2021-46871?

CVE-2021-46871 is a medium-severity vulnerability in Phoenixframework Phoenix HTML, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-10.

How severe is CVE-2021-46871?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Phoenixframework Phoenix HTML

CVE-2021-46871

tag.ex in Phoenix Phoenix.HTML (aka phoenix_html) before 3.0.4 allows XSS in HEEx class attributes.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (34.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Phoenixframework Phoenix_html
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Patch, Third Party Advisory)
cve@mitre.org (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-46871?: CVE-2021-46871 is a medium-severity vulnerability in Phoenixframework Phoenix HTML, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-01-10.
How severe is CVE-2021-46871?: Medium severity. CVSS v3 base score is 6.1 out of 10.