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CVE-2009-4214

15
FAUCET Score

CVE-2009-4214 describes a cross-site scripting (XSS) vulnerability in the strip_tags function of Ruby on Rails versions prior to 2.2.s and 2.3.5. This flaw allows remote attackers to inject arbitrary web script or HTML due to improper handling of non-printing ASCII characters. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial integrity impact, but no confidentiality or availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.3.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:*
2.3.3CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:*
2.3.4CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.3.4:*:*:*:*:*:*:*
0.9.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.1:*:*:*:*:*:*:*
0.9.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:0.9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.02%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0302 is in the 79th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: railsFixed in: 2.2.2
rubygemspatch availablevia ghsa
Product: railsFixed in: 2.3.5

Vendor Advisories (2)

rubygemsGHSA-9p3v-wf2w-v29cmedium

Moderate severity vulnerability that affects rails

Oct 24, 2017
redhatCVE-2009-4214Low

rubygem-actionpack: XSS weakness in strip_tags

Nov 27, 2009

References

github.com / rails/rails/commit/bfe032858077bb2946abe25e95e485ba6da86bd5
Patch
groups.google.com / group/rubyonrails-security/browse_thread/thread/4d4f71f2aef4c0ab
lists.apple.com / archives/security-announce/2010//Mar/msg00001.html
lists.opensuse.org / opensuse-security-announce/2010-03/msg00004.html
secunia.com / advisories/37446
Vendor Advisory
secunia.com / advisories/38915
Vendor Advisory
support.apple.com / kb/HT4077
weblog.rubyonrails.org / 2009/11/30/ruby-on-rails-2-3-5-released
debian.org / security/2011/dsa-2260
debian.org / security/2011/dsa-2301
openwall.com / lists/oss-security/2009/11/27/2
openwall.com / lists/oss-security/2009/12/08/3
securityfocus.com / bid/37142
Patch
securitytracker.com / id
vupen.com / english/advisories/2009/3352
PatchVendor Advisory