{"cve":"CVE-2013-1856","nvd":{"published":"2013-03-19T22:55:01.070","modified":"2026-06-16T23:52:15.167","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html","http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html","http://support.apple.com/kb/HT5784","http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released/","https://groups.google.com/group/rubyonrails-security/msg/6c2482d4ed1545e6?dmode=source&output=gplain"],"products":["rubyonrails:rails","rubyonrails:ruby_on_rails"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2013-1856","score":0.02054,"percentile":0.81277,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9c2j-593q-3g82","url":"https://osv.dev/vulnerability/GHSA-9c2j-593q-3g82","summary":"activesupport Improper Input Validation vulnerability","modified":"2024-12-05T05:33:43.658748Z","packages":[{"ecosystem":"RubyGems","name":"activesupport","purl":"pkg:gem/activesupport","ranges":[">=3.0.0 <3.1.12"],"fixed":["3.1.12"]},{"ecosystem":"RubyGems","name":"activesupport","purl":"pkg:gem/activesupport","ranges":[">=3.2.0 <3.2.13"],"fixed":["3.2.13"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}