How severe is CVE-2013-3221?

No CVSS score has been assigned to CVE-2013-3221 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2013-3221?

CVE-2013-3221 affects the following packages: activerecord (RubyGems). Ecosystems affected: RubyGems.

How do I fix CVE-2013-3221?

Update activerecord to 4.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-3221 is resolved across your whole dependency graph.

How do I detect CVE-2013-3221 in my RubyGems dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for activerecord, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2013-3221 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2013-3221 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2013-3221, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2013-3221?

CVE-2013-3221 has an EPSS (Exploit Prediction Scoring System) score of 2.4%, placing it in the 84th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2013-3221?

CVE-2013-3221 is classified as Improper Input Validation (CWE-20). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2013-3221 published, and has it been updated?

CVE-2013-3221 was published on April 22, 2013 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

💎 RubyGems

Not in CISA KEV

CVE-2013-3221 — activerecord

CVE-2013-3221 is a Improper Input Validation vulnerability in activerecord. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for activerecord — see the affected versions and patch details below.

Active Record component in Ruby on Rails has a data-type injection vulnerability

Also known asGHSA-f57c-hx33-hvh8

Published

Apr 22, 2013

Updated

Apr 10, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

2.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs84th percentile — riskier than 84% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

💎activerecord

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.

Description

The Active Record component in Ruby on Rails 2.3.x, 3.0.x, 3.1.x, and 3.2.x does not ensure that the declared data type of a database column is used during comparisons of input values to stored values in that column, which makes it easier for remote attackers to conduct data-type injection attacks against Ruby on Rails applications via a crafted value, as demonstrated by unintended interaction between the "typed XML" feature and a MySQL database.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
💎RubyGems	`activerecord`	all versions	4.2.0`bundle update activerecord --conservative`

Affected Products

2 products · 104 configurations

Application

railsrubyonrails

56 versions

2.3.02.3.12.3.22.3.32.3.42.3.92.3.102.3.112.3.122.3.132.3.142.3.15

Application

ruby on railsrubyonrails

1 version

3.0.4

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The Active Record component in Ruby on Rails 2.3.x, 3.0.x, 3.1.x, and 3.…

phenoelit.orgNVDAug 2019

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for activerecord, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update activerecord to 4.2.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2013-3221 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2013-3221 in your dependencies?

Find it across RubyGems, including transitive dependencies.

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