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CVE-2011-0447

actionpack Cross-Site Request Forgery vulnerability

6.8 MediumFix available

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Exploit likelihood

1.42%Down 0.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.8

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
CVE-2011-0447
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-352
Updated
2026-11-02
CVE List No score

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
CVE-2011-0447
Updated
2026-11-02
EUVDEUVD-2017-0148 No score

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
EUVD-2017-0148
Updated
2026-11-03
GitHub AdvisoriesGHSA-24fg-p96v-hxh8 No score

actionpack Cross-Site Request Forgery vulnerability

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
GHSA-24fg-p96v-hxh8
Weakness
CWE-352
Updated
2026-11-02
OSV No score

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
CVE-2011-0447
Updated
2026-11-02
OSVDEBIAN-CVE-2011-0447 No score

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
DEBIAN-CVE-2011-0447
Updated
2026-11-02
OSVGHSA-24fg-p96v-hxh8 No score

actionpack Cross-Site Request Forgery vulnerability

Ruby on Rails 2.1.x, 2.2.x, and 2.3.x before 2.3.11, and 3.x before 3.0.4, does not properly validate HTTP requests that contain an X-Requested-With header, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via forged (1) AJAX or (2) API requests that leverage "combinations of browser plugins and HTTP redirects," a related issue to CVE-2011-0696.

Record
GHSA-24fg-p96v-hxh8
Weakness
CWE-352
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
actionpack
RubyGems
 2.1.0 up to 2.3.11
2.3.11
actionpack
RubyGems
 3.0.0 up to 3.0.4
3.0.4
rails
Debian:12
 before 2.3.11-0.1
2.3.11-0.1
rails
Debian:13
 before 2.3.11-0.1
2.3.11-0.1
rails
Debian:14
 before 2.3.11-0.1
2.3.11-0.1
rails
Debian:6.0
From an advisory covering 2 CVEs
 before 2.3.5-1.2+squeeze0.1, plus listed versions
2.3.5-1.2
2.3.5-1.2+squeeze0.1
rails
Debian:5.0
From an advisory covering 2 CVEs
 before 2.1.0-7+lenny0.1, plus listed versions
2.1.0-62.1.0-7
2.1.0-7+lenny0.1
actionpack
RubyGems
 2.1.0 up to 2.3.11, plus listed versions
2.1.12.1.22.2.22.2.32.3.10
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2.3.22.3.32.3.42.3.52.3.62.3.72.3.82.3.8.pre12.3.92.3.9.pre
2.3.11
actionpack
RubyGems
 3.0.0 up to 3.0.4, plus listed versions
3.0.13.0.23.0.33.0.4.rc1
3.0.4

History

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

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

In short

CVE-2011-0447 is a medium vulnerability (CVSS 6.8) in Rubyonrails Rails, published February 14, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.42%, the 72nd percentile. Fixed in actionpack 2.3.11.

References

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