CVE-2009-4214

VendorrubyonrailsProductrails, ruby on railsDiscoveredDec 7, 2009UpdatedApr 23, 2026

Cross-site scripting (XSS) vulnerability in the strip_tags function in Ruby on Rails before 2.2.s, and 2.3.x before 2.3.5, allows remote attackers to inject arbitrary web script or HTML via vectors involving non-printing ASCII characters, related to HTML::Tokenizer and actionpack/lib/action_controller/vendor/html-scanner/html/node.rb.

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CVSS v3.1

—

EPSS

3.02%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

Connections

3 relationships

CWE-79

source

Timeline

disclosure → media coverage

Dec 7, 2009

Disclosure — published as a CVE record. · last revised by NVD Apr 23, 2026