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CVE-2011-2197

MEDIUM · CVSS 4.3EPSS 2.0%EU EUVD

The cross-site scripting (XSS) prevention feature in Ruby on Rails 2.x before 2.3.12, 3.0.x before 3.0.8, and 3.1.x before 3.1.0.rc2 does not properly handle mutation of safe buffers, which makes it easier for remote attackers to conduct XSS attacks via crafted strings to an application that uses a problematic string method, as demonstrated by the sub method.

Key facts

CVSS score
4.3 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE)
CWE-79
EPSS score
2.0% (80th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2017-0312)
Published
June 30, 2011
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-0312 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / rails
  • rubyonrails / ruby on rails

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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