github - ghsa-pg8v-g4xq-hww9

GHSA-PG8V-G4XQ-HWW9

Vulnerability from github – Published: 2022-06-25 00:00 – Updated: 2025-11-04 16:39

Summary

Rails::Html::Sanitizer vulnerable to Cross-site Scripting

Details

Versions of Rails::Html::Sanitizer prior to version 1.4.3 are vulnerable to XSS with certain configurations of Rails::Html::Sanitizer which allows an attacker to inject content when the application developer has overridden the sanitizer's allowed tags to allow both select and style elements. Code is only impacted if allowed tags are being overridden.

This may be done via application configuration: ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = ["select", "style"]

see https://guides.rubyonrails.org/configuring.html#configuring-action-view

Or it may be done with a :tags option to the Action View helper sanitize: <%= sanitize @comment.body, tags: ["select", "style"] %>

see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize

It may also be done with Rails::Html::SafeListSanitizer directly: ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = ["select", "style"] or with ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["select", "style"])

All users overriding the allowed tags by any of the above mechanisms to include both "select" and "style" are recommended to upgrade immediately. A workaround for this issue can be applied by removing either select or style from the overridden allowed tags.

Severity ?

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rails-html-sanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-32209"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-07-05T18:10:35Z",
    "nvd_published_at": "2022-06-24T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Versions of Rails::Html::Sanitizer prior to version 1.4.3 are vulnerable to XSS with certain configurations of Rails::Html::Sanitizer which  allows an attacker to inject content when the application developer has overridden the sanitizer\u0027s allowed tags to allow both `select` and `style` elements. Code is only impacted if allowed tags are being overridden. \n\nThis may be done via application configuration: ```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]```\n\nsee https://guides.rubyonrails.org/configuring.html#configuring-action-view\n\nOr it may be done with a `:tags` option to the Action View helper `sanitize`: ```\u003c%= sanitize @comment.body, tags: [\"select\", \"style\"] %\u003e``` \n\nsee https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize \n\nIt may also be done with Rails::Html::SafeListSanitizer directly: \n```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]```  or with\n```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"select\", \"style\"])```\n\nAll users overriding the allowed tags by any of the above mechanisms to include both \"select\" and \"style\" are recommended to upgrade immediately. A workaround for this issue can be applied by removing either `select` or `style` from the overridden allowed tags.",
  "id": "GHSA-pg8v-g4xq-hww9",
  "modified": "2025-11-04T16:39:03Z",
  "published": "2022-06-25T00:00:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32209"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails-html-sanitizer/commit/45a5c10fed3d9aa141594c80afa06d748fa0967d"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1530898"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rails/rails-html-sanitizer"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-32209.yml"
    },
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    },
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    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Rails::Html::Sanitizer vulnerable to Cross-site Scripting"
}

CVE-2022-32209 (GCVE-0-2022-32209)

Vulnerability from cvelistv5 – Published: 2022-06-24 00:00 – Updated: 2025-11-03 21:46

Summary

# Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both `select` and `style` elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = ["select", "style"]```see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a `:tags` option to the Action View helper `sanitize`:```<%= sanitize @comment.body, tags: ["select", "style"] %>```see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = ["select", "style"]```or```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["select", "style"])```All users overriding the allowed tags by any of the above mechanisms to include both "select" and "style" should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either `select` or `style` from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user).

Severity ?

No CVSS data available.

CWE

CWE-79 - Cross-site Scripting (XSS) - Generic (CWE-79)

Assigner

hackerone

References

URL

	Vendor	Product	Version
	n/a	https://github.com/rails/rails-html-sanitizer	Affected: v1.4.3

GSD-2022-32209

Vulnerability from gsd - Updated: 2022-06-09 00:00

Details

There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer. This vulnerability has been assigned the CVE identifier CVE-2022-32209. Versions Affected: ALL Not affected: NONE Fixed Versions: v1.4.3 ## Impact A possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both `select` and `style` elements. Code is only impacted if allowed tags are being overridden. This may be done via application configuration: ```ruby # In config/application.rb config.action_view.sanitized_allowed_tags = ["select", "style"] ``` see https://guides.rubyonrails.org/configuring.html#configuring-action-view Or it may be done with a `:tags` option to the Action View helper `sanitize`: ``` <%= sanitize @comment.body, tags: ["select", "style"] %> ``` see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize Or it may be done with Rails::Html::SafeListSanitizer directly: ```ruby # class-level option Rails::Html::SafeListSanitizer.allowed_tags = ["select", "style"] ``` or ```ruby # instance-level option Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["select", "style"]) ``` All users overriding the allowed tags by any of the above mechanisms to include both "select" and "style" should either upgrade or use one of the workarounds immediately. ## Workarounds Remove either `select` or `style` from the overridden allowed tags.

Aliases

CVE-2022-32209

JSON

To clipboard

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    "description": "# Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags to allow both `select` and `style` elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]```see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a `:tags` option to the Action View helper `sanitize`:```\u003c%= sanitize @comment.body, tags: [\"select\", \"style\"] %\u003e```see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]```or```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"select\", \"style\"])```All users overriding the allowed tags by any of the above mechanisms to include both \"select\" and \"style\" should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either `select` or `style` from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user).",
    "id": "GSD-2022-32209",
    "references": [
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      "description": "There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.\nThis vulnerability has been assigned the CVE identifier CVE-2022-32209.\n\nVersions Affected: ALL\nNot affected: NONE\nFixed Versions: v1.4.3\n\n## Impact\n\nA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer\nmay allow an attacker to inject content if the application developer has overridden\nthe sanitizer\u0027s allowed tags to allow both `select` and `style` elements.\n\nCode is only impacted if allowed tags are being overridden. This may be done via\napplication configuration:\n\n```ruby\n# In config/application.rb\nconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]\n```\n\nsee https://guides.rubyonrails.org/configuring.html#configuring-action-view\n\nOr it may be done with a `:tags` option to the Action View helper `sanitize`:\n\n```\n\u003c%= sanitize @comment.body, tags: [\"select\", \"style\"] %\u003e\n```\n\nsee https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize\n\nOr it may be done with Rails::Html::SafeListSanitizer directly:\n\n```ruby\n# class-level option\nRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]\n```\n\nor\n\n```ruby\n# instance-level option\nRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"select\", \"style\"])\n```\n\nAll users overriding the allowed tags by any of the above mechanisms to include\nboth \"select\" and \"style\" should either upgrade or use one of the workarounds immediately.\n\n## Workarounds\n\nRemove either `select` or `style` from the overridden allowed tags.\n",
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          "date": "2022-07-05",
          "description": "There is a possible XSS vulnerability with certain configurations of `Rails::Html::Sanitizer`. `Rails::Html::Sanitizer` may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags to allow both `select` and `style` elements. Code is only impacted if allowed tags are being overridden.",
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          "pubdate": "2022-06-25",
          "solution": "Upgrade to version 1.4.3 or above.",
          "title": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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          {
            "lang": "en",
            "value": "# Possible XSS Vulnerability in Rails::Html::SanitizerThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.This vulnerability has been assigned the CVE identifier CVE-2022-32209.Versions Affected: ALLNot affected: NONEFixed Versions: v1.4.3## ImpactA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags to allow both `select` and `style` elements.Code is only impacted if allowed tags are being overridden. This may be done via application configuration:```ruby# In config/application.rbconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]```see https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr it may be done with a `:tags` option to the Action View helper `sanitize`:```\u003c%= sanitize @comment.body, tags: [\"select\", \"style\"] %\u003e```see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr it may be done with Rails::Html::SafeListSanitizer directly:```ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]```or```ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"select\", \"style\"])```All users overriding the allowed tags by any of the above mechanisms to include both \"select\" and \"style\" should either upgrade or use one of the workarounds immediately.## ReleasesThe FIXED releases are available at the normal locations.## WorkaroundsRemove either `select` or `style` from the overridden allowed tags.## CreditsThis vulnerability was responsibly reported by [windshock](https://hackerone.com/windshock?type=user)."
          },
          {
            "lang": "es",
            "value": "# Una Posible vulnerabilidad XSS en Rails::Html::Sanitizer Se presenta una posible vulnerabilidad XSS con determinadas configuraciones de Rails::Html::Sanitizer. Esta vulnerabilidad le ha sido asignada el identificador CVE CVE-2022-32209. Versiones afectadas: TODAS No se han visto afectadas: NONE Versiones Corregidas: v1.4.3## Impacto Una posible vulnerabilidad de tipo XSS con determinadas configuraciones de Rails::Html::Sanitizer puede permitir a un atacante inyectar contenido si el desarrollador de la aplicaci\u00f3n ha anulado las etiquetas permitidas del saneador para permitir tanto los elementos \"select\" como \"style\". El c\u00f3digo s\u00f3lo est\u00e1 afectado si son anuladas las etiquetas permitidas. Esto puede hacerse por medio de la configuraci\u00f3n de la aplicaci\u00f3n: \"\"ruby# En config/application.rbconfig.action_view.sanitized_allowed_tags = [\"select\", \"style\"]\"\" vea https://guides.rubyonrails.org/configuring.html#configuring-action-viewOr puede hacerse con una opci\u00f3n \":tags\" al ayudante de la Visualizaci\u00f3n de Acci\u00f3n \"sanitize\":\"\"(%= sanitize @comment.body, tags: [\"select\", \"style\"] %)\"\" vea https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitizeOr puede hacerse con Rails::Html::SafeListSanitizer directamente:\" ruby# class-level optionRails::Html::SafeListSanitizer.allowed_tags = [\"select\", \"style\"]\"\"\"o\"\"\"ruby# instance-level optionRails::Html::SafeListSanitizer.new.sanitize(@article. body, tags: [\"select\", \"style\"])\"\"\"Todos los usuarios que sobrescriban las etiquetas permitidas por cualquiera de los mecanismos anteriores para incluir tanto \"select\" como \"style\" deben actualizar o usar una de las mitigaciones inmediatamente. ## Versiones Las versiones CORREGIDAS est\u00e1n disponibles en las ubicaciones habituales. ## Soluciones Eliminar \"select\" o \"style\" de las etiquetas permitidas sobre establecidas. ## Cr\u00e9ditos Esta vulnerabilidad fue reportada responsablemente por [windshock](https://hackerone.com/windshock?type=user)"
          }
        ],
        "id": "CVE-2022-32209",
        "lastModified": "2024-02-01T16:22:15.683",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "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"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": true
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.1,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 2.7,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-06-24T15:15:11.153",
        "references": [
          {
            "source": "support@hackerone.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://hackerone.com/reports/1530898"
          },
          {
            "source": "support@hackerone.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00012.html"
          },
          {
            "source": "support@hackerone.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AGRLWBEB3S5AU3D4TTROIS7O6QPHDTRH/"
          },
          {
            "source": "support@hackerone.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHDACMCLWE32BZZTSNWQPIFUAD5I6Q47/"
          }
        ],
        "sourceIdentifier": "support@hackerone.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "support@hackerone.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

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-PG8V-G4XQ-HWW9

CVE-2022-32209 (GCVE-0-2022-32209)

GSD-2022-32209

Tags

Sightings

Nomenclature