rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags where the "style" element is explicitly allowed and the "svg" or "math" element is not allowed. This vulnerability is fixed in 1.6.1.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

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.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Rubyonrails
  • Rails Html Sanitizers

Configuration 1 [-]

cpe:2.3:a:rubyonrails:rails_html_sanitizers:1.6.0:*:*:*:*:rails:*:*

No data.

References
Link Providers
https://github.com/rails/rails-html-sanitizer/commit/f02ffbb8465e73920b6de0da940f5530f855965e cve-icon cve-icon cve-icon
https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-2x5m-9ch4-qgrr cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-53987 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-53987 cve-icon
History

Fri, 15 Aug 2025 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Rubyonrails
Rubyonrails rails Html Sanitizers
CPEs cpe:2.3:a:rubyonrails:rails_html_sanitizers:1.6.0:*:*:*:*:rails:*:*
Vendors & Products Rubyonrails
Rubyonrails rails Html Sanitizers
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

Tue, 03 Dec 2024 18:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}

 cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Tue, 03 Dec 2024 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 03 Dec 2024 01:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}

threat_severity

Low

Mon, 02 Dec 2024 22:00:00 +0000

Type Values Removed Values Added
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

 cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Mon, 02 Dec 2024 21:30:00 +0000

Type Values Removed Values Added
Description rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags where the "style" element is explicitly allowed and the "svg" or "math" element is not allowed. This vulnerability is fixed in 1.6.1.
Title Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-12-03T14:33:22.284Z

Reserved: 2024-11-25T23:14:36.380Z

Link: CVE-2024-53987

cve-icon Vulnrichment

Updated: 2024-12-03T14:33:18.369Z

cve-icon NVD

Status : Analyzed

Published: 2024-12-02T22:15:11.473

Modified: 2025-08-15T18:53:05.647

Link: CVE-2024-53987

cve-icon Redhat

Severity : Low

Publid Date: 2024-12-02T21:15:48Z

Links: CVE-2024-53987 - Bugzilla