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Fencer Intel
medium 4.3

CVE-2012-1098 json

activesupport Cross-site Scripting vulnerability

published 2012-03-13 14 y ago modified 2026-06-16 4 mo ago also GHSA-qv8p-v9qw-wc7g , EUVD-2017-0294

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in Ruby on Rails 3.0.x before 3.0.12, 3.1.x before 3.1.4, and 3.2.x before 3.2.2 allows remote attackers to inject arbitrary web script or HTML via vectors involving a SafeBuffer object that is manipulated through certain methods.

Patch / fix

  • rubygems activesupport 3.0.12, 3.1.4, 3.2.2
  • rails Debian 14, Debian 13, Debian 12 2.3.14

debian advisories DEBIAN-CVE-2012-1098

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-1098 updated cvss 4.3

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

  • Red Hat Subscription Asset Manager rubygem-activesupport
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.65% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected packages

ecosystem package affected fixed in
rubygems activesupport
>=3.0.0, <3.0.12
>=3.1.0, <3.1.4
>=3.2.0, <3.2.2
3.0.12
3.1.4
3.2.2

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.