CVE-2015-3226 activesupport Cross-site Scripting vulnerability

What is CVE-2015-3226?

CVE-2015-3226 is a medium-severity cross-site scripting vulnerability in Rubyonrails Rails, published on 26 Jul 2015. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-79

Which versions are affected by CVE-2015-3226?

4 open source packages ship an affected version, including activesupport. It affects 2 products.

Products include Rubyonrails Rails, Rubyonrails Ruby on Rails.

How do I fix CVE-2015-3226?

Upgrade activesupport to a fixed version for your release line: 4.1.11 or 4.2.2.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2015-3226 being exploited?

There is no known exploitation of CVE-2015-3226 in the wild and no public exploit code.

Other vulnerabilities in Rubyonrails Rails

• CVE-2013-0277 Active Record contains deserialization of arbitrary YAML Critical 10.0
• CVE-2017-17916 SQL injection in n/a High 8.1
• CVE-2017-17917 SQL injection in n/a High 8.1
• CVE-2026-33195 Rails Active Storage has possible Path Traversal in DiskService High 8.0
• CVE-2024-26142 Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch High 7.5

All Rubyonrails Rails vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2015-3226, GHSA-vxvp-4xwc-jpp6.