cvelistv5 - cve-2024-27087

CVE-2024-27087 (GCVE-0-2024-27087)

Vulnerability from cvelistv5 – Published: 2024-02-26 16:44 – Updated: 2024-08-02 00:27

Summary

Kirby is a content management system. The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a "Custom" link type for advanced use cases that don't fit any of the pre-defined link formats. As the "Custom" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field. This vulnerability is patched in 4.1.1.

Severity ?

4.6 (Medium)


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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/getkirby/kirby/security/adviso…	x_refsource_CONFIRM
	https://github.com/getkirby/kirby/commit/cda3dd9a…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	getkirby	kirby	Affected: >= 4.0.0, < 4.1.1

Show details on NVD website

JSON

To clipboard

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GSD-2024-27087

Vulnerability from gsd - Updated: 2024-02-20 06:02

Details

Aliases

CVE-2024-27087

JSON

To clipboard

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            "name": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437",
            "refsource": "MISC",
            "url": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-63h4-w25c-3qv4",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "Kirby is a content management system. The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a \"Custom\" link type for advanced use cases that don\u0027t fit any of the pre-defined link formats.  As the \"Custom\" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field. This vulnerability is patched in 4.1.1.\n\n"
          }
        ],
        "id": "CVE-2024-27087",
        "lastModified": "2024-02-26T22:10:40.463",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.6,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.1,
              "impactScore": 2.5,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-02-26T17:15:10.783",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-79"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}

GHSA-63H4-W25C-3QV4

Vulnerability from github – Published: 2024-02-26 20:01 – Updated: 2024-02-26 20:01

Summary

Kirby vulnerable to Cross-site scripting (XSS) in the link field "Custom" type

Details

TL;DR

This vulnerability affects Kirby sites that use the new link field and output the entered link without additional validation or sanitization.

The attack commonly requires user interaction by another user or visitor.

The link dialog of the writer field is not affected as the writer field content is automatically sanitized by the Kirby backend code. You are also already protected if you limit the acceptable link types with the options field property.

Introduction

Cross-site scripting (XSS) is a type of vulnerability that allows to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can for example trigger requests to Kirby's API with the permissions of the victim.

Such vulnerabilities are critical if you might have potential attackers in your group of authenticated Panel users. They can escalate their privileges if they get access to the Panel session of an admin user. Depending on your site, other JavaScript-powered attacks are possible.

Impact

The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a "Custom" link type for advanced use cases that don't fit any of the pre-defined link formats.

As the "Custom" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field.

Patches

The problem has been patched in Kirby 4.1.1. Please update to this or a later version to fix the vulnerability.

In the patch release, we have updated the link field to hide the "Custom" link type by default and added a warning to our documentation that this link type should only be enabled if additional validation is performed or no protection against XSS attacks is needed.

Credits

Thanks to Natwara Archeepsamooth (@PlyNatwara) for responsibly informing us about the javascript: attack vector.

Severity ?

4.6 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "getkirby/cms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-27087"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-26T20:01:08Z",
    "nvd_published_at": "2024-02-26T17:15:10Z",
    "severity": "MODERATE"
  },
  "details": "### TL;DR\n\nThis vulnerability affects Kirby sites that use the new [link field](https://getkirby.com/docs/reference/panel/fields/link) and output the entered link without additional validation or sanitization.\n\nThe attack commonly requires user interaction by another user or visitor.\n\nThe link dialog of the writer field is *not* affected as the writer field content is automatically sanitized by the Kirby backend code. You are also already protected if you limit the acceptable link types with the `options` field property.\n\n----\n\n### Introduction\n\nCross-site scripting (XSS) is a type of vulnerability that allows to execute any kind of JavaScript code inside the Panel session of the same or other users. In the Panel, a harmful script can for example trigger requests to Kirby\u0027s API with the permissions of the victim.\n\nSuch vulnerabilities are critical if you might have potential attackers in your group of authenticated Panel users. They can escalate their privileges if they get access to the Panel session of an admin user. Depending on your site, other JavaScript-powered attacks are possible.\n\n### Impact\n\nThe new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a \"Custom\" link type for advanced use cases that don\u0027t fit any of the pre-defined link formats.\n\nAs the \"Custom\" link type is meant to be flexible, it also allows the `javascript:` URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field.\n\n### Patches\n\nThe problem has been patched in [Kirby 4.1.1](https://github.com/getkirby/kirby/releases/tag/4.1.1). Please update to this or a [later version](https://github.com/getkirby/kirby/releases) to fix the vulnerability.\n\nIn the patch release, we have updated the link field to hide the \"Custom\" link type by default and added a warning to our [documentation](https://getkirby.com/docs/reference/panel/fields/link#custom-link-type) that this link type should only be enabled if additional validation is performed or no protection against XSS attacks is needed.\n\n### Credits\n\nThanks to Natwara Archeepsamooth (@PlyNatwara) for responsibly informing us about the `javascript:` attack vector.",
  "id": "GHSA-63h4-w25c-3qv4",
  "modified": "2024-02-26T20:01:08Z",
  "published": "2024-02-26T20:01:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27087"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getkirby/kirby"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getkirby/kirby/releases/tag/4.1.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Kirby vulnerable to Cross-site scripting (XSS) in the link field \"Custom\" type"
}

FKIE_CVE-2024-27087

Vulnerability from fkie_nvd - Published: 2024-02-26 17:15 - Updated: 2024-12-31 15:34

Severity ?

4.6 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437	Patch
security-advisories@github.com	https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4	Vendor Advisory

Impacted products

	Vendor	Product	Version
	getkirby	kirby	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E14BEE12-BE86-4527-9BCA-194ACE2C2050",
              "versionEndExcluding": "4.1.1",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kirby is a content management system. The new link field introduced in Kirby 4 allows several different link types that each validate the entered link to the relevant URL format. It also includes a \"Custom\" link type for advanced use cases that don\u0027t fit any of the pre-defined link formats.  As the \"Custom\" link type is meant to be flexible, it also allows the javascript: URL scheme. In some use cases this can be intended, but it can also be misused by attackers to execute arbitrary JavaScript code when a user or visitor clicks on a link that is generated from the contents of the link field. This vulnerability is patched in 4.1.1.\n\n"
    },
    {
      "lang": "es",
      "value": "Kirby es un sistema de gesti\u00f3n de contenidos. El nuevo campo de enlace introducido en Kirby 4 permite varios tipos de enlaces diferentes, cada uno de los cuales valida el enlace ingresado en el formato de URL correspondiente. Tambi\u00e9n incluye un tipo de enlace \"Personalizado\" para casos de uso avanzados que no se ajustan a ninguno de los formatos de enlace predefinidos. Como el tipo de enlace \"Personalizado\" pretende ser flexible, tambi\u00e9n permite el esquema de URL javascript:. En algunos casos de uso, esto puede ser intencionado, pero los atacantes tambi\u00e9n pueden utilizarlo indebidamente para ejecutar c\u00f3digo JavaScript arbitrario cuando un usuario o visitante hace clic en un enlace que se genera a partir del contenido del campo de enlace. Esta vulnerabilidad est\u00e1 parcheada en 4.1.1."
    }
  ],
  "id": "CVE-2024-27087",
  "lastModified": "2024-12-31T15:34:15.493",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.6,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.1,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-02-26T17:15:10.783",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/getkirby/kirby/commit/cda3dd9a15228d35e62ff86cfa87a67e7c687437"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-63h4-w25c-3qv4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

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

CVE-2024-27087 (GCVE-0-2024-27087)

GSD-2024-27087

GHSA-63H4-W25C-3QV4

TL;DR

Introduction

Impact

Patches

Credits

FKIE_CVE-2024-27087

Tags

Sightings

Nomenclature