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Vulnerability details: VCID-43f3-rxwm-fkgv
Vulnerability ID VCID-43f3-rxwm-fkgv
Aliases CVE-2011-2932
GHSA-9fh3-vh3h-q4g3
Summary Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails 2.x 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 malformed Unicode string, related to a "UTF-8 escaping vulnerability."
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
generic_textual MODERATE http://groups.google.com/group/rubyonrails-security/msg/f1d2749773db9f21?dmode=source&output=gplain
generic_textual MODERATE http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065114.html
generic_textual MODERATE http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065189.html
generic_textual MODERATE http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065212.html
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
epss 0.00813 https://api.first.org/data/v1/epss?cve=CVE-2011-2932
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=731435
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-9fh3-vh3h-q4g3
generic_textual MODERATE https://github.com/rails/rails
generic_textual MODERATE https://github.com/rails/rails/commit/bfc432574d0b141fd7fe759edfe9b6771dd306bd
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2011-2932.yml
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2011-2932
generic_textual MODERATE http://weblog.rubyonrails.org/2011/8/16/ann-rails-3-1-0-rc6
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/17/1
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/19/11
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/20/1
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/22/13
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/22/14
generic_textual MODERATE http://www.openwall.com/lists/oss-security/2011/08/22/5
Reference id Reference type URL
http://groups.google.com/group/rubyonrails-security/msg/f1d2749773db9f21?dmode=source&output=gplain
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065114.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065189.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065212.html
https://api.first.org/data/v1/epss?cve=CVE-2011-2932
https://bugzilla.redhat.com/show_bug.cgi?id=731435
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2932
http://secunia.com/advisories/45917
https://github.com/rails/rails
https://github.com/rails/rails/commit/bfc432574d0b141fd7fe759edfe9b6771dd306bd
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/activesupport/CVE-2011-2932.yml
http://weblog.rubyonrails.org/2011/8/16/ann-rails-3-1-0-rc6
http://www.openwall.com/lists/oss-security/2011/08/17/1
http://www.openwall.com/lists/oss-security/2011/08/19/11
http://www.openwall.com/lists/oss-security/2011/08/20/1
http://www.openwall.com/lists/oss-security/2011/08/22/13
http://www.openwall.com/lists/oss-security/2011/08/22/14
http://www.openwall.com/lists/oss-security/2011/08/22/5
CVE-2011-2932 https://nvd.nist.gov/vuln/detail/CVE-2011-2932
GHSA-9fh3-vh3h-q4g3 https://github.com/advisories/GHSA-9fh3-vh3h-q4g3
GLSA-201412-28 https://security.gentoo.org/glsa/201412-28
No exploits are available.
Exploit Prediction Scoring System (EPSS)
Percentile 0.74208
EPSS Score 0.00813
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T12:47:25.644267+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/gem/activesupport/CVE-2011-2932.yml 38.0.0