CVE-2013-0333

Exp

lib/active_support/json/backends/yaml.rb in Ruby on Rails 2.3.x before 2.3.16 and 3.0.x before 3.0.20 does not properly convert JSON data to YAML data for processing by a YAML parser, which allows remote attackers to execute arbitrary code, conduct SQL injection attacks, or bypass authentication via crafted data that triggers unsafe decoding, a different vulnerability than CVE-2013-0156.

Published: 2013-01-30 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-0333 is rated High Exploit Risk (79.7/100): CVSS High severity, with high exploitation likelihood (EPSS 91.76%, 100th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-0333

EDB-ID Source Kind Published Link
24434 exploit_db edb 2013-01-29 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-0333

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-05 91.94% 91.76% -0.17%
2 2026-03-04 89.36% 91.94% +2.58%
3 2026-03-01 89.36%

Full EPSS history (49 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-0333

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2013-0333

GitHub Security Advisory for CVE-2013-0333

GHSA-xgr2-v94m-rc9g · Severity: high · Ecosystem: rubygems — activesupport in Rails vulnerable to incorrect data conversion

OS Trackers for CVE-2013-0333

vendor priority summary link
debian not yet assigned CVE-2013-0333 not yet assigned priority: Debian including 1 source packages (rails), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-0333
gentoo high CVE-2013-0333: 1 GLSA(s) (201412-28), 1 atom(s) (dev-ruby/rails); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-0333
redhat critical https://access.redhat.com/security/cve/CVE-2013-0333
suse medium https://www.suse.com/security/cve/CVE-2013-0333/
ubuntu high CVE-2013-0333 high priority: Ubuntu including 3 source packages (rails, ruby-activesupport-2.3, ruby-activesupport-3.2), 24 status rows across 8 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, upstream): not-affected 10, DNE 6, released 4, ignored 2, needs-triage 2. https://ubuntu.com/security/CVE-2013-0333

Affected software / configurations for CVE-2013-0333

Vendor Product Version Raw CPE
rubyonrails rails 2.3.0 cpe:2.3:a:rubyonrails:rails:2.3.0:*:*:*:*:*:*:*
rubyonrails rails 2.3.1 cpe:2.3:a:rubyonrails:rails:2.3.1:*:*:*:*:*:*:*
rubyonrails rails 2.3.2 cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:*
rubyonrails rails 2.3.3 cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:*
rubyonrails rails 2.3.4 cpe:2.3:a:rubyonrails:rails:2.3.4:*:*:*:*:*:*:*
rubyonrails rails 2.3.9 cpe:2.3:a:rubyonrails:rails:2.3.9:*:*:*:*:*:*:*
rubyonrails rails 2.3.10 cpe:2.3:a:rubyonrails:rails:2.3.10:*:*:*:*:*:*:*
rubyonrails rails 2.3.11 cpe:2.3:a:rubyonrails:rails:2.3.11:*:*:*:*:*:*:*
rubyonrails rails 2.3.12 cpe:2.3:a:rubyonrails:rails:2.3.12:*:*:*:*:*:*:*
rubyonrails rails 2.3.13 cpe:2.3:a:rubyonrails:rails:2.3.13:*:*:*:*:*:*:*
rubyonrails rails 2.3.14 cpe:2.3:a:rubyonrails:rails:2.3.14:*:*:*:*:*:*:*
rubyonrails rails 2.3.15 cpe:2.3:a:rubyonrails:rails:2.3.15:*:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:*:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta2:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta3:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:beta4:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:rc:*:*:*:*:*:*
rubyonrails rails 3.0.0 cpe:2.3:a:rubyonrails:rails:3.0.0:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.1 cpe:2.3:a:rubyonrails:rails:3.0.1:*:*:*:*:*:*:*
rubyonrails rails 3.0.1 cpe:2.3:a:rubyonrails:rails:3.0.1:pre:*:*:*:*:*:*
rubyonrails rails 3.0.2 cpe:2.3:a:rubyonrails:rails:3.0.2:*:*:*:*:*:*:*
rubyonrails rails 3.0.2 cpe:2.3:a:rubyonrails:rails:3.0.2:pre:*:*:*:*:*:*
rubyonrails rails 3.0.3 cpe:2.3:a:rubyonrails:rails:3.0.3:*:*:*:*:*:*:*
rubyonrails rails 3.0.4 cpe:2.3:a:rubyonrails:rails:3.0.4:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.5 cpe:2.3:a:rubyonrails:rails:3.0.5:*:*:*:*:*:*:*
rubyonrails rails 3.0.5 cpe:2.3:a:rubyonrails:rails:3.0.5:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.6 cpe:2.3:a:rubyonrails:rails:3.0.6:*:*:*:*:*:*:*
rubyonrails rails 3.0.6 cpe:2.3:a:rubyonrails:rails:3.0.6:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.6 cpe:2.3:a:rubyonrails:rails:3.0.6:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.7 cpe:2.3:a:rubyonrails:rails:3.0.7:*:*:*:*:*:*:*
rubyonrails rails 3.0.7 cpe:2.3:a:rubyonrails:rails:3.0.7:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.7 cpe:2.3:a:rubyonrails:rails:3.0.7:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.8 cpe:2.3:a:rubyonrails:rails:3.0.8:*:*:*:*:*:*:*
rubyonrails rails 3.0.8 cpe:2.3:a:rubyonrails:rails:3.0.8:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.8 cpe:2.3:a:rubyonrails:rails:3.0.8:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.8 cpe:2.3:a:rubyonrails:rails:3.0.8:rc3:*:*:*:*:*:*
rubyonrails rails 3.0.8 cpe:2.3:a:rubyonrails:rails:3.0.8:rc4:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:*:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:rc2:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:rc3:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:rc4:*:*:*:*:*:*
rubyonrails rails 3.0.9 cpe:2.3:a:rubyonrails:rails:3.0.9:rc5:*:*:*:*:*:*
rubyonrails rails 3.0.10 cpe:2.3:a:rubyonrails:rails:3.0.10:*:*:*:*:*:*:*
rubyonrails rails 3.0.10 cpe:2.3:a:rubyonrails:rails:3.0.10:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.11 cpe:2.3:a:rubyonrails:rails:3.0.11:*:*:*:*:*:*:*
rubyonrails rails 3.0.12 cpe:2.3:a:rubyonrails:rails:3.0.12:*:*:*:*:*:*:*
rubyonrails rails 3.0.12 cpe:2.3:a:rubyonrails:rails:3.0.12:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.13 cpe:2.3:a:rubyonrails:rails:3.0.13:*:*:*:*:*:*:*
rubyonrails rails 3.0.13 cpe:2.3:a:rubyonrails:rails:3.0.13:rc1:*:*:*:*:*:*
rubyonrails rails 3.0.14 cpe:2.3:a:rubyonrails:rails:3.0.14:*:*:*:*:*:*:*
rubyonrails rails 3.0.16 cpe:2.3:a:rubyonrails:rails:3.0.16:*:*:*:*:*:*:*
rubyonrails rails 3.0.17 cpe:2.3:a:rubyonrails:rails:3.0.17:*:*:*:*:*:*:*
rubyonrails rails 3.0.18 cpe:2.3:a:rubyonrails:rails:3.0.18:*:*:*:*:*:*:*
rubyonrails rails 3.0.19 cpe:2.3:a:rubyonrails:rails:3.0.19:*:*:*:*:*:*:*
rubyonrails ruby_on_rails 3.0.4 cpe:2.3:a:rubyonrails:ruby_on_rails:3.0.4:*:*:*:*:*:*:*

References for CVE-2013-0333

cvelogic Threat Intelligence