CVE-2013-1856
activesupport Improper Input Validation vulnerability
EPSS 0.71%
Description
The `ActiveSupport::XmlMini_JDOM` backend in `lib/active_support/xml_mini/jdom.rb` in the Active Support component in Ruby on Rails 3.0.x and 3.1.x before 3.1.12 and 3.2.x before 3.2.13, when JRuby is used, does not properly restrict the capabilities of the XML parser, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via vectors involving (1) an external DTD or (2) an external entity declaration in conjunction with an entity reference.
How to fix CVE-2013-1856
To remediate CVE-2013-1856, upgrade the affected package to a fixed version below.
- —upgrade to 3.1.12 or later
Is CVE-2013-1856 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0.0, < 3.1.12