CVE-2022-23519 (Medium) detected in rails-html-sanitizer-1.4.2.gem

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CVE-2022-23519 - Medium Severity Vulnerability

Vulnerable Library - rails-html-sanitizer-1.4.2.gem

HTML sanitization for Rails applications

Library home page: https://rubygems.org/gems/rails-html-sanitizer-1.4.2.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /home/wss-scanner/.gem/ruby/2.7.0/cache/rails-html-sanitizer-1.4.2.gem

Dependency Hierarchy:

• actionview-6.0.5.gem (Root Library)
  • :x: rails-html-sanitizer-1.4.2.gem (Vulnerable Library)

Found in base branch: master

Vulnerability Details

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags in either of the following ways: allow both "math" and "style" elements, or allow both "svg" and "style" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include "math" or "svg" and "style" should either upgrade or use the following workaround immediately: Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.

Publish Date: 2022-12-14

URL: CVE-2022-23519

CVSS 3 Score Details (6.1)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h

Release Date: 2022-12-14

Fix Resolution: rails-html-sanitizer - 1.4.4