Home/CVE/Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1
CVE

CVE-2015-3226

Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1

Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.

MEDIUM · CVSS 4.3 EPSS 0.00212
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

2
rubyonrails railsall versions
rubyonrails ruby on railsall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
RubyGems activesupport MODERATE fixed in 4.1.11
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumRuby on Rails Framework Exceptions
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Published to NVD26 Jul 2015 · 10:59 PM
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2024:10574-1
suse-csafSUSE-SU-2016:0082-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://openwall.com/lists/oss-security/2015/06/16/17
http://www.debian.org/security/2016/dsa-3464
http://www.securityfocus.com/bid/75231
http://www.securitytracker.com/id/1033755
https://groups.google.com/forum/message/raw?msg=rubyonrails-security/7VlB_pck3hU/3QZrGIaQW6cJVendor Advisory
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