github - ghsa-vxvp-4xwc-jpp6

GHSA-VXVP-4XWC-JPP6

Vulnerability from github – Published: 2017-10-24 18:33 – Updated: 2025-11-04 20:42

Summary

activesupport Cross-site Scripting vulnerability

Details

Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "activesupport"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.1.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "activesupport"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "4.2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2015-3226"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:59:02Z",
    "nvd_published_at": "2015-07-26T22:59:05Z",
    "severity": "MODERATE"
  },
  "details": "Cross-site scripting (XSS) vulnerability in `json/encoding.rb` in Active Support in Ruby on Rails 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.",
  "id": "GHSA-vxvp-4xwc-jpp6",
  "modified": "2025-11-04T20:42:18Z",
  "published": "2017-10-24T18:33:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3226"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rails/rails"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/message/raw?msg=rubyonrails-security/7VlB_pck3hU/3QZrGIaQW6cJ"
    },
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      "url": "https://groups.google.com/g/rubyonrails-core/c/qBUqVlXERag/m/kuH3wQk1kxUJ"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200228033946/http://www.securityfocus.com/bid/75231"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200517005133/http://www.securitytracker.com/id/1033755"
    },
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      "url": "http://openwall.com/lists/oss-security/2015/06/16/17"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3464"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "activesupport Cross-site Scripting vulnerability"
}

GSD-2015-3226

Vulnerability from gsd - Updated: 2015-06-16 00:00

Details

When a `Hash` containing user-controlled data is encode as JSON (either through `Hash#to_json` or `ActiveSupport::JSON.encode`), Rails does not perform adequate escaping that matches the guarantee implied by the `escape_html_entities_in_json` option (which is enabled by default). If this resulting JSON string is subsequently inserted directly into an HTML page, the page will be vulnerable to XSS attacks. For example, the following code snippet is vulnerable to this attack: <%= javascript_tag "var data = #{user_supplied_data.to_json};" %> Similarly, the following is also vulnerable: <script> var data = <%= ActiveSupport::JSON.encode(user_supplied_data).html_safe %>; </script> All applications that renders JSON-encoded strings that contains user-controlled data in their views should either upgrade to one of the FIXED versions or use the suggested workaround immediately. Workarounds ----------- To work around this problem add an initializer with the following code: module ActiveSupport module JSON module Encoding private class EscapedString def to_s self end end end end end

Aliases

CVE-2015-3226

JSON

To clipboard

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    "id": "GSD-2015-3226",
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      "https://www.debian.org/security/2016/dsa-3464"
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      "description": "When a `Hash` containing user-controlled data is encode as JSON (either through\n`Hash#to_json` or `ActiveSupport::JSON.encode`), Rails does not perform adequate\nescaping that matches the guarantee implied by the `escape_html_entities_in_json`\noption (which is enabled by default). If this resulting JSON string is subsequently\ninserted directly into an HTML page, the page will be vulnerable to XSS attacks.\n\nFor example, the following code snippet is vulnerable to this attack:\n\n    \u003c%= javascript_tag \"var data = #{user_supplied_data.to_json};\" %\u003e\n\nSimilarly, the following is also vulnerable:\n\n    \u003cscript\u003e\n      var data = \u003c%= ActiveSupport::JSON.encode(user_supplied_data).html_safe %\u003e;\n    \u003c/script\u003e\n\nAll applications that renders JSON-encoded strings that contains user-controlled\ndata in their views should either upgrade to one of the FIXED versions or use\nthe suggested workaround immediately.\n\nWorkarounds\n-----------\nTo work around this problem add an initializer with the following code:\n\n  module ActiveSupport\n    module JSON\n      module Encoding\n        private\n        class EscapedString\n          def to_s\n            self\n          end\n        end\n      end\n    end\n  end\n",
      "framework": "rails",
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      "ghsa": "vxvp-4xwc-jpp6",
      "patched_versions": [
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        "~\u003e 4.1.11"
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      "unaffected_versions": [
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          "affected_versions": "All versions starting from 4.1.0a before 4.1.11, all versions starting from 4.2.0a before 4.2.2",
          "credit": "Francois Chagnon of Shopify",
          "cvss_v2": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "cwe_ids": [
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          ],
          "date": "2019-08-08",
          "description": "When a `Hash` containing user-controlled data is encoded as JSON (either through `Hash#to_json` or `ActiveSupport::JSON.encode`), Rails does not perform adequate escaping that matches the guarantee implied by the `escape_html_entities_in_json` option (which is enabled by default). If this resulting JSON string is subsequently inserted directly into an HTML page, the page will be vulnerable to XSS attacks.",
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          "package_slug": "gem/activesupport",
          "pubdate": "2015-07-26",
          "solution": "Upgrade to latest, apply patch or use workaround; see provided link.",
          "title": "XSS Vulnerability in ActiveSupport::JSON.encode",
          "urls": [
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
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          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        }
      },
      "lastModifiedDate": "2019-08-08T15:43Z",
      "publishedDate": "2015-07-26T22:59Z"
    }
  }
}

CVE-2015-3226 (GCVE-0-2015-3226)

Vulnerability from cvelistv5 – Published: 2015-07-26 22:00 – Updated: 2024-08-06 05:39

Summary

Cross-site scripting (XSS) vulnerability in json/encoding.rb in Active Support in Ruby on Rails 3.x and 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.

Severity ?

No CVSS data available.

CWE

Assigner

redhat

References

URL

Tags

	http://www.securitytracker.com/id/1033755	vdb-entryx_refsource_SECTRACK
	https://groups.google.com/forum/message/raw?msg=r…	mailing-listx_refsource_MLIST
	http://www.securityfocus.com/bid/75231	vdb-entryx_refsource_BID
	http://openwall.com/lists/oss-security/2015/06/16/17	mailing-listx_refsource_MLIST
	http://www.debian.org/security/2016/dsa-3464	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-VXVP-4XWC-JPP6

GSD-2015-3226

CVE-2015-3226 (GCVE-0-2015-3226)

Tags

Sightings

Nomenclature