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CVE-2009-3009

17
FAUCET Score

CVE-2009-3009 is a cross-site scripting (XSS) vulnerability affecting Ruby on Rails versions 2.x before 2.2.3 and 2.3.x before 2.3.4. This flaw allows remote attackers to inject arbitrary web script or HTML by submitting malformed Unicode strings via a form helper. 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 or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.0.0:rc1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.0.0:rc2:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:2.0.2:*:*:*:*:*:*:*

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 2026-07-27
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

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 (4)

rubygemspatch availablevia ghsa
Product: actionpackFixed in: 2.2.3
rubygemspatch availablevia ghsa
Product: actionpackFixed in: 2.3.4
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 2.2.3
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 2.3.4

Vendor Advisories (2)

rubygemsGHSA-8qrh-h9m2-5fvfmedium

Cross site scripting that affects rails

Oct 24, 2017
redhatCVE-2009-3009Moderate

ruby-activesupport: XSS vulnerability

Sep 3, 2009

References

bugs.debian.org / cgi-bin/bugreport.cgi
groups.google.com / group/rubyonrails-security/msg/7f57cd7794e1d1b4
Patch
lists.apple.com / archives/security-announce/2010//Mar/msg00001.html
lists.opensuse.org / opensuse-security-announce/2009-10/msg00004.html
secunia.com / advisories/36600
Vendor Advisory
secunia.com / advisories/36717
Vendor Advisory
securitytracker.com / id
Patch
exchange.xforce.ibmcloud.com / vulnerabilities/53036
support.apple.com / kb/HT4077
weblog.rubyonrails.org / 2009/9/4/xss-vulnerability-in-ruby-on-rails
debian.org / security/2009/dsa-1887
osvdb.org / 57666
securityfocus.com / bid/36278
vupen.com / english/advisories/2009/2544
PatchVendor Advisory