How severe is CVE-2012-3464?

CVE-2012-3464 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-3464 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3464?

CVE-2012-3464 primarily affects Rubyonrails Rails. In total, 142 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3464?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-3464 published?

CVE-2012-3464 was published on 2012-08-10 and last updated on 2026-06-16.

CVE-2012-3464

CVE-2012-3464 is a medium-severity vulnerability in Rubyonrails Rails with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Rubyonrails Rails
Published: 2012-08-10
Last modified: 2026-06-16

Description

Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails before 3.0.17, 3.1.x before 3.1.8, and 3.2.x before 3.2.8 might allow remote attackers to inject arbitrary web script or HTML via vectors involving a ' (quote) character.

Frequently asked questions

What is CVE-2012-3464?: Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails before 3.0.17, 3.1.x before 3.1.8, and 3.2.x before 3.2.8 might allow remote attackers to inject arbitrary web script or HTML via vectors involving a ' (quote) character.
How severe is CVE-2012-3464?: CVE-2012-3464 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-3464 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3464?: CVE-2012-3464 primarily affects Rubyonrails Rails. In total, 142 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3464?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3464 published?: CVE-2012-3464 was published on 2012-08-10 and last updated on 2026-06-16.

References

Affected products (142)

cpe:2.3:a:rubyonrails:rails:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.9.4.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.10.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.10.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.11.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.11.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.12.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.12.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.13.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.13.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.14.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.14.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.14.3:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:0.14.4:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.2.6:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:1.9.5:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:rubyonrails:rails:2.1.0:*:*:*:*:*:*:*

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