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    CVE-2022-23519

    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.

    Published:Dec 13, 2022
    Last Modified:Nov 3, 2025
    EPS:Dec 14, 2022
    EPSS Score:0.00101
    CVSS Score:7.2

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Rubyonrails
    Product
    Rails Html Sanitizers

    Exploits

    https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623hhttps://hackerone.com/reports/1656627https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623hhttps://hackerone.com/reports/1656627

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High