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CVE-2011-2932

17
FAUCET Score

CVE-2011-2932 describes a cross-site scripting (XSS) vulnerability in Ruby on Rails versions 2.x, 3.0.x, and 3.1.x, specifically within the output_safety.rb component. This flaw allows remote attackers to inject arbitrary web script or HTML through malformed Unicode strings, stemming from a UTF-8 escaping vulnerability. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a potential impact of partial integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), 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
2.49%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0249 is in the 73rd percentile among its peer group of 19,955 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)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 2.3.13
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 3.0.10

Vendor Advisories (1)

rubygemsGHSA-9fh3-vh3h-q4g3medium

activesupport Cross-site Scripting vulnerability

Oct 24, 2017

References

groups.google.com / group/rubyonrails-security/msg/f1d2749773db9f21
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-September/065114.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065189.html
lists.fedoraproject.org / pipermail/package-announce/2011-September/065212.html
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/45917
github.com / rails/rails/commit/bfc432574d0b141fd7fe759edfe9b6771dd306bd
Patch
weblog.rubyonrails.org / 2011/8/16/ann-rails-3-1-0-rc6
Patch
openwall.com / lists/oss-security/2011/08/17/1
Patch
openwall.com / lists/oss-security/2011/08/19/11
Patch
openwall.com / lists/oss-security/2011/08/20/1
Patch
openwall.com / lists/oss-security/2011/08/22/13
Patch
openwall.com / lists/oss-security/2011/08/22/14
openwall.com / lists/oss-security/2011/08/22/5
Patch