UBUNTU-CVE-2018-3741

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    UBUNTU-CVE-2018-3741

    Published: 30 Mar 2018Last Modified: 24 Oct 2025
    Upstream:
    CVE-2018-3741

    Summary:

    Details: There is a possible XSS vulnerability in all rails-html-sanitizer gem versions below 1.0.4 for Ruby. The gem allows non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments, and these attributes can lead to an XSS attack on target applications. This issue is similar to CVE-2018-8048 in Loofah. All users running an affected release should either upgrade or use one of the workarounds immediately.

    References: https://ubuntu.com/security/CVE-2018-3741, http://www.openwall.com/lists/oss-security/2018/03/22, https://www.cve.org/CVERecord?id=CVE-2018-3741

    Affected packages

    Package

    Name: ruby-rails-html-sanitizer

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.0.2-1
    1.0.3-1
    1.0.3-2

    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