github - ghsa-mjxr-4v3x-q3m4

ghsa-mjxr-4v3x-q3m4

Vulnerability from github

Published

2021-05-06 16:10

Modified

2021-03-29 23:13

Severity ?

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

Summary

Improper Input Validation in sanitize-html

Details

Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowedIframeHostnames" option when the "allowIframeRelativeUrls" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with "/\example.com".

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "sanitize-html"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-26540"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-29T23:13:11Z",
    "nvd_published_at": "2021-02-08T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the \"allowedIframeHostnames\" option when the \"allowIframeRelativeUrls\" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with \"/\\\\example.com\".",
  "id": "GHSA-mjxr-4v3x-q3m4",
  "modified": "2021-03-29T23:13:11Z",
  "published": "2021-05-06T16:10:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26540"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apostrophecms/sanitize-html/pull/460"
    },
    {
      "type": "WEB",
      "url": "https://advisory.checkmarx.net/advisory/CX-2021-4309"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Input Validation in sanitize-html"
}

cve-2021-26540

Vulnerability from cvelistv5

Published

2021-02-08 16:16

Modified

2024-08-03 20:26

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26	x_refsource_MISC
	https://github.com/apostrophecms/sanitize-html/pull/460	x_refsource_MISC
	https://advisory.checkmarx.net/advisory/CX-2021-4309	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:26:25.388Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/apostrophecms/sanitize-html/pull/460"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://advisory.checkmarx.net/advisory/CX-2021-4309"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the \"allowedIframeHostnames\" option when the \"allowIframeRelativeUrls\" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with \"/\\\\example.com\"."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-25T22:01:14",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/apostrophecms/sanitize-html/pull/460"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://advisory.checkmarx.net/advisory/CX-2021-4309"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-26540",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the \"allowedIframeHostnames\" option when the \"allowIframeRelativeUrls\" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with \"/\\\\example.com\"."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26",
              "refsource": "MISC",
              "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26"
            },
            {
              "name": "https://github.com/apostrophecms/sanitize-html/pull/460",
              "refsource": "MISC",
              "url": "https://github.com/apostrophecms/sanitize-html/pull/460"
            },
            {
              "name": "https://advisory.checkmarx.net/advisory/CX-2021-4309",
              "refsource": "MISC",
              "url": "https://advisory.checkmarx.net/advisory/CX-2021-4309"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-26540",
    "datePublished": "2021-02-08T16:16:07",
    "dateReserved": "2021-02-01T00:00:00",
    "dateUpdated": "2024-08-03T20:26:25.388Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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