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CVE-2011-2197

rails Cross-site Scripting vulnerability

4.3 MediumFix available

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.

Exploit likelihood

1.96%Up 0.6 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 4.3

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.

Record
CVE-2011-2197
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2011-2197
Updated
2026-11-02
EUVDEUVD-2017-0312 No score

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.

Record
EUVD-2017-0312
Updated
2026-11-03
GitHub AdvisoriesGHSA-v9v4-7jp6-8c73 No score

rails Cross-site Scripting vulnerability

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.

Record
GHSA-v9v4-7jp6-8c73
Weakness
CWE-79
Updated
2026-11-02
OSVGHSA-v9v4-7jp6-8c73 No score

rails Cross-site Scripting vulnerability

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.

Record
GHSA-v9v4-7jp6-8c73
Weakness
CWE-79
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
actionpack
RubyGems
 2.0.0 up to 2.3.11
2.3.11
actionpack
RubyGems
 3.0.0 up to 3.0.7
3.0.7
activesupport
RubyGems
 2.0.0 up to 2.3.11
2.3.11
activesupport
RubyGems
 3.0.0 up to 3.0.7
3.0.7
actionpack
RubyGems
 2.0.0 up to 2.3.12, plus listed versions
2.0.12.0.22.0.42.0.52.1.0
Show 16 moreShow less
2.1.12.1.22.2.22.2.32.3.102.3.112.3.22.3.32.3.42.3.52.3.62.3.72.3.82.3.8.pre12.3.92.3.9.pre
2.3.12
actionpack
RubyGems
 3.0.0 up to 3.0.8, plus listed versions
3.0.13.0.23.0.33.0.43.0.4.rc1
Show 11 moreShow less
3.0.53.0.5.rc13.0.63.0.6.rc13.0.6.rc23.0.73.0.7.rc13.0.7.rc23.0.8.rc13.0.8.rc23.0.8.rc4
3.0.8
activesupport
RubyGems
 2.0.0 up to 2.3.12, plus listed versions
2.0.12.0.22.0.42.0.52.1.0
Show 17 moreShow less
2.1.12.1.22.2.22.2.32.3.102.3.112.3.22.3.32.3.42.3.52.3.62.3.6.pre2.3.72.3.82.3.8.pre12.3.92.3.9.pre
2.3.12
activesupport
RubyGems
 3.0.0 up to 3.0.8, plus listed versions
3.0.13.0.23.0.33.0.43.0.4.rc1
Show 11 moreShow less
3.0.53.0.5.rc13.0.63.0.6.rc13.0.6.rc23.0.73.0.7.rc13.0.7.rc23.0.8.rc13.0.8.rc23.0.8.rc4
3.0.8

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-2197 is a medium vulnerability (CVSS 4.3) in Rubyonrails Rails, published June 30, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.96%, the 80th percentile. Fixed in actionpack 2.3.11.

References

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