Is CVE-2013-0156 actively exploited?

CVE-2013-0156 has no public evidence of in-the-wild exploitation as of 2025-04-11.

What is the CVSS score for CVE-2013-0156?

CVE-2013-0156 has a CVSS score of 7.5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P.

How do I patch CVE-2013-0156?

Patch guidance is available from rubyonrails security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2013-0156.

CVE-2013-0156 - remediation guidance & executive summary

Q: Which products are affected by CVE-2013-0156?

6 products: rubyonrails rails, rubyonrails ruby on rails, rubyonrails ruby on rails, rubyonrails ruby on rails, debian debian linux, and 1 more.

Description

active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: partial
Integrity: partial
Availability: partial
Weaknesses: CWE-20 · Improper Input Validation

Metadata

Primary Vendor: RUBYONRAILS
Published: 1/13/2013
Last Modified: 4/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

rubyonrails : railsrubyonrails : ruby_on_railsrubyonrails : ruby_on_railsrubyonrails : ruby_on_railsdebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD