CVE-2009-3009 Cross site scripting that affects rails
Remote attackers can inject arbitrary web script or HTML via malformed Unicode strings in form helpers, requiring user interaction to execute.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2009-3009?
CVE-2009-3009 is a medium-severity cross-site scripting vulnerability in Rubyonrails Rails, published on 8 Sep 2009. 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 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.
Weakness: CWE-79
Which versions are affected by CVE-2009-3009?
8 open source packages ship an affected version, including actionpack and activesupport. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
actionpack RubyGems | From 2.0.0 | 2.2.3 |
actionpack RubyGems | From 2.0.0 | 2.2.3 |
actionpack RubyGems | From 2.3.0 | 2.3.4 |
actionpack RubyGems | From 2.3.0 | 2.3.4 |
activesupport RubyGems | From 2.0.0 | 2.2.3 |
activesupport RubyGems | From 2.0.0 | 2.2.3 |
2 more packages
activesupport RubyGems | From 2.3.0 | 2.3.4 |
activesupport RubyGems | From 2.3.0 | 2.3.4 |
Products include Rubyonrails Rails.
How do I fix CVE-2009-3009?
Upgrade actionpack to a fixed version for your release line: 2.2.3 or 2.3.4.
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-2009-3009 being exploited?
There is no known exploitation of CVE-2009-3009 in the wild and no public exploit code.
Other vulnerabilities in Rubyonrails Rails
- CVE-2013-0277 Active Record contains deserialization of arbitrary YAML
- CVE-2017-17916 SQL injection in n/a
- CVE-2017-17917 SQL injection in n/a
- CVE-2026-33195 Rails Active Storage has possible Path Traversal in DiskService
- CVE-2024-26142 Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch
Sources
Also known as DEBIAN-CVE-2009-3009, DSA-1887-1, GHSA-8qrh-h9m2-5fvf.