CVE-2021-46871 - Vulnerability Details - OpenCVE

Description

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

Published: 2023-01-10

Score: 6.1 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:phoenixframework:phoenix_html:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-0339	phoenix_html allows Cross-site Scripting in HEEx class attributes
Github GHSA	GHSA-5g2h-9x5v-5h3x	phoenix_html allows Cross-site Scripting in HEEx class attributes

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00234.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/advisories/GHSA-j3gg-r6gp-95q2
https://github.com/phoenixframework/phoenix_html/commit/62a0139fb716bcdce697f6221244bd81d321d620

History

Wed, 09 Apr 2025 18:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Phoenixframework Phoenix Html

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-01-10T00:00:00.000Z

Updated: 2025-04-09T17:21:41.118Z

Reserved: 2023-01-10T00:00:00.000Z

Link: CVE-2021-46871

Vulnrichment

Updated: 2024-08-04T05:17:42.955Z

NVD

Status : Modified

Published: 2023-01-10T06:15:09.870

Modified: 2025-04-09T18:15:44.107

Link: CVE-2021-46871

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79

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