Moderate severityNVD Advisory· Published Aug 29, 2011· Updated Jun 16, 2026
CVE-2011-2931
CVE-2011-2931
Description
Cross-site scripting (XSS) vulnerability in the strip_tags helper in actionpack/lib/action_controller/vendor/html-scanner/html/node.rb in Ruby on Rails before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a tag with an invalid name.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
actionpackRubyGems | >= 2.0.0, < 2.3.13 | 2.3.13 |
actionpackRubyGems | >= 3.0.0, < 3.0.10 | 3.0.10 |
Affected products
60cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*+ 57 more
- cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:2.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:beta:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:rc:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.10:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.1:pre:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.2:pre:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.4:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.5:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.6:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.6:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.7:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.7:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.8:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.8:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.8:rc3:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.8:rc4:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:rc3:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:rc4:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.0.9:rc5:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:3.1.0:rc4:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:ruby_on_rails:3.0.4:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
18- groups.google.com/group/rubyonrails-security/msg/fd41ab62966e0fd1nvdPatchWEB
- weblog.rubyonrails.org/2011/8/16/ann-rails-3-1-0-rc6nvdPatchWEB
- www.openwall.com/lists/oss-security/2011/08/17/1nvdPatchWEB
- www.openwall.com/lists/oss-security/2011/08/19/11nvdPatchWEB
- www.openwall.com/lists/oss-security/2011/08/20/1nvdPatchWEB
- www.openwall.com/lists/oss-security/2011/08/22/13nvdPatchWEB
- www.openwall.com/lists/oss-security/2011/08/22/5nvdPatchWEB
- bugzilla.redhat.com/show_bug.cginvdPatchWEB
- github.com/rails/rails/commit/586a944ddd4d03e66dea1093306147594748037anvdPatchWEB
- github.com/advisories/GHSA-v5jg-558j-q67cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2011-2931ghsaADVISORY
- lists.fedoraproject.org/pipermail/package-announce/2011-September/065109.htmlnvdWEB
- lists.fedoraproject.org/pipermail/package-announce/2011-September/065137.htmlnvdWEB
- lists.fedoraproject.org/pipermail/package-announce/2011-September/065212.htmlnvdWEB
- www.debian.org/security/2011/dsa-2301nvdWEB
- www.openwall.com/lists/oss-security/2011/08/22/14nvdWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2011-2931.ymlghsaWEB
- secunia.com/advisories/45921nvd
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