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CVE-2011-2197

18
FAUCET Score

CVE-2011-2197 describes a cross-site scripting (XSS) vulnerability in Ruby on Rails versions 2.x, 3.0.x, and 3.1.x. The flaw stems from improper handling of safe buffer mutations, specifically when certain string methods like "sub" are used, allowing remote attackers to inject crafted strings. This medium-severity vulnerability has a CVSS score of 4.3, indicating a network-based attack with medium complexity and potential for partial integrity impact. 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
1.96%
Probability of exploitation in next 30 days
EPSS Percentile
78.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0196 is in the 62nd 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)

rubygemspatch availablevia ghsa
Product: actionpackFixed in: 2.3.12
rubygemspatch availablevia ghsa
Product: actionpackFixed in: 3.0.8
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 2.3.12
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 3.0.8

Vendor Advisories (1)

rubygemsGHSA-v9v4-7jp6-8c73medium

rails Cross-site Scripting vulnerability

Oct 24, 2017

References

groups.google.com / group/rubyonrails-security/msg/663b600d4471e0d4
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-July/062514.html
lists.fedoraproject.org / pipermail/package-announce/2011-June/062090.html
openwall.com / lists/oss-security/2011/06/09/2
Patch
openwall.com / lists/oss-security/2011/06/13/9
Patch
secunia.com / advisories/44789
Vendor Advisory
weblog.rubyonrails.org / 2011/6/8/potential-xss-vulnerability-in-ruby-on-rails-applications
Patch