CVE-2015-1840

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    CVE-2015-1840

    Published: 26 Jul 2015Last Modified: 16 Mar 2026

    Summary:

    Details: jquery_ujs.js in jquery-rails before 3.1.3 and 4.x before 4.0.4 and rails.js in jquery-ujs before 1.0.4, as used with Ruby on Rails 3.x and 4.x, allow remote attackers to bypass the Same Origin Policy, and trigger transmission of a CSRF token to a different-domain web server, via a leading space character in a URL within an attribute value.

    References: http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160906.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161043.html, http://lists.opensuse.org/opensuse-updates/2015-07/msg00041.html, https://github.com/rails/jquery-rails/blob/master/CHANGELOG.md, https://github.com/rails/jquery-ujs/blob/master/CHANGELOG.md, https://groups.google.com/forum/message/raw?msg=rubyonrails-security/XIZPbobuwaY/fqnzzpuOlA4J, https://groups.google.com/forum/message/raw?msg=rubyonrails-security/XIZPbobuwaY/fqnzzpuOlA4J, http://openwall.com/lists/oss-security/2015/06/16/15, http://www.securityfocus.com/bid/75239

    Affected packages

    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