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    CVE-2009-3009

    Cross-site scripting (XSS) vulnerability in Ruby on Rails 2.x before 2.2.3, and 2.3.x before 2.3.4, allows remote attackers to inject arbitrary web script or HTML by placing malformed Unicode strings into a form helper.

    Published:Sep 3, 2009
    Last Modified:Apr 23, 2026
    EPS:Sep 8, 2009
    EPSS Score:0.01632
    CVSS Score:4.3

    Affected Products

    Vendor
    Rubyonrails
    Product
    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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=545063
    http://groups.google.com/group/rubyonrails-security/msg/7f57cd7794e1d1b4?dmode=source
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
    http://secunia.com/advisories/36600
    http://secunia.com/advisories/36717
    http://securitytracker.com/id?1022824
    http://support.apple.com/kb/HT4077
    http://weblog.rubyonrails.org/2009/9/4/xss-vulnerability-in-ruby-on-rails
    http://www.debian.org/security/2009/dsa-1887
    http://www.osvdb.org/57666
    http://www.securityfocus.com/bid/36278
    http://www.vupen.com/english/advisories/2009/2544
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53036
    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=545063
    http://groups.google.com/group/rubyonrails-security/msg/7f57cd7794e1d1b4?dmode=source
    http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
    http://secunia.com/advisories/36600
    http://secunia.com/advisories/36717
    http://securitytracker.com/id?1022824
    http://support.apple.com/kb/HT4077
    http://weblog.rubyonrails.org/2009/9/4/xss-vulnerability-in-ruby-on-rails
    http://www.debian.org/security/2009/dsa-1887
    http://www.osvdb.org/57666
    http://www.securityfocus.com/bid/36278
    http://www.vupen.com/english/advisories/2009/2544
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53036

    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