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    CVE-2009-4214

    Cross-site scripting (XSS) vulnerability in the strip_tags function in Ruby on Rails before 2.2.s, and 2.3.x before 2.3.5, allows remote attackers to inject arbitrary web script or HTML via vectors involving non-printing ASCII characters, related to HTML::Tokenizer and actionpack/lib/action_controller/vendor/html-scanner/html/node.rb.

    Published:Nov 27, 2009
    Last Modified:Apr 23, 2026
    EPS:Dec 7, 2009
    EPSS Score:0.01632
    CVSS Score:4.3

    Affected Products

    Vendor
    Rubyonrails
    Product
    Rails
    Vendor
    Rubyonrails
    Product
    Ruby On Rails

    Exploits

    No exploit reference

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    CVE-2026-33176 (CVSS 6.6) — Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. …
    CVE-2026-33174 (CVSS 6.6) — Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, …
    CVE-2026-33173 (CVSS 5.3) — Active Storage allows users to attach cloud and local files in Rails applications. Prior to versions 8.1.2.1, …
    CVE-2026-33170 (CVSS 5.3) — Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. …
    CVE-2026-33169 (CVSS 6.9) — Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. …
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    References

    http://github.com/rails/rails/commit/bfe032858077bb2946abe25e95e485ba6da86bd5
    http://groups.google.com/group/rubyonrails-security/browse_thread/thread/4d4f71f2aef4c0ab?pli=1
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
    http://secunia.com/advisories/37446
    http://secunia.com/advisories/38915
    http://support.apple.com/kb/HT4077
    http://weblog.rubyonrails.org/2009/11/30/ruby-on-rails-2-3-5-released
    http://www.debian.org/security/2011/dsa-2260
    http://www.debian.org/security/2011/dsa-2301
    http://www.openwall.com/lists/oss-security/2009/11/27/2
    http://www.openwall.com/lists/oss-security/2009/12/08/3
    http://www.securityfocus.com/bid/37142
    http://www.securitytracker.com/id?1023245
    http://www.vupen.com/english/advisories/2009/3352
    http://github.com/rails/rails/commit/bfe032858077bb2946abe25e95e485ba6da86bd5
    http://groups.google.com/group/rubyonrails-security/browse_thread/thread/4d4f71f2aef4c0ab?pli=1
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
    http://secunia.com/advisories/37446
    http://secunia.com/advisories/38915
    http://support.apple.com/kb/HT4077
    http://weblog.rubyonrails.org/2009/11/30/ruby-on-rails-2-3-5-released
    http://www.debian.org/security/2011/dsa-2260
    http://www.debian.org/security/2011/dsa-2301
    http://www.openwall.com/lists/oss-security/2009/11/27/2
    http://www.openwall.com/lists/oss-security/2009/12/08/3
    http://www.securityfocus.com/bid/37142
    http://www.securitytracker.com/id?1023245
    http://www.vupen.com/english/advisories/2009/3352

    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