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CVE-2012-1098

18
FAUCET Score

CVE-2012-1098 describes a cross-site scripting (XSS) vulnerability in Ruby on Rails versions 3.0.x prior to 3.0.12, 3.1.x prior to 3.1.4, and 3.2.x prior to 3.2.2. This flaw allows remote attackers to inject arbitrary web script or HTML by manipulating a SafeBuffer object through specific methods. With a CVSS score of 4.3, this vulnerability has a medium attack complexity and requires no authentication, potentially leading to information disclosure or defacement. 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
3.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:3.0.0:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:3.0.0:beta:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:3.0.0:beta2:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:3.0.0:beta3:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:rubyonrails:rails:3.0.0:beta4:*:*:*:*:*:*

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
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 67th percentile among its peer group of 19,956 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: activesupportFixed in: 3.0.12
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 3.1.4
rubygemspatch availablevia ghsa
Product: activesupportFixed in: 3.2.2
redhatno patchvia redhat_api
Product: Red Hat Subscription Asset ManagerFixed in: rubygem-activesupport

Vendor Advisories (2)

rubygemsGHSA-qv8p-v9qw-wc7gmedium

activesupport Cross-site Scripting vulnerability

Oct 24, 2017
redhatCVE-2012-1098Moderate

rubygem-activesupport: XSS in SafeBuffer#[] (unescaped safe buffers can be marked as safe)

Mar 1, 2012

References

groups.google.com / group/rubyonrails-security/msg/1c2e01a5e42722c9
lists.fedoraproject.org / pipermail/package-announce/2012-March/075675.html
bugzilla.redhat.com / show_bug.cgi
weblog.rubyonrails.org / 2012/3/1/ann-rails-3-0-12-has-been-released
openwall.com / lists/oss-security/2012/03/02/6
openwall.com / lists/oss-security/2012/03/03/1