github - ghsa-mjfh-rmmm-2mm7

ghsa-mjfh-rmmm-2mm7

Vulnerability from github

Published

2022-05-24 17:40

Modified

2022-05-24 17:40

Details

A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.

Show details on source website

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-8294"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-03T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a \u0027javascript:\u0027 URL in markdown format.",
  "id": "GHSA-mjfh-rmmm-2mm7",
  "modified": "2022-05-24T17:40:55Z",
  "published": "2022-05-24T17:40:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8294"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1023787"
    },
    {
      "type": "WEB",
      "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-8294 (GCVE-0-2020-8294)

Vulnerability from cvelistv5

Published

2021-02-03 16:42

Modified

2024-08-04 09:56

Severity ?

CWE

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

Summary

A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.

References

URL

Tags

	https://hackerone.com/reports/1023787	x_refsource_CONFIRM
	https://nextcloud.com/security/advisory/?id=NC-SA-2021-002	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Nextcloud Server	Version: Fixed in 20.0.2, 19.0.5, 18.0.11

Show details on NVD website

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:56:28.335Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1023787"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-002"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nextcloud Server",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in 20.0.2, 19.0.5, 18.0.11"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a \u0027javascript:\u0027 URL in markdown format."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "Cross-site Scripting (XSS) - Stored (CWE-79)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-03T16:42:57",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://hackerone.com/reports/1023787"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-002"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2020-8294",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Nextcloud Server",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Fixed in 20.0.2, 19.0.5, 18.0.11"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a \u0027javascript:\u0027 URL in markdown format."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Cross-site Scripting (XSS) - Stored (CWE-79)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/1023787",
              "refsource": "CONFIRM",
              "url": "https://hackerone.com/reports/1023787"
            },
            {
              "name": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-002",
              "refsource": "CONFIRM",
              "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2021-002"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2020-8294",
    "datePublished": "2021-02-03T16:42:57",
    "dateReserved": "2020-01-28T00:00:00",
    "dateUpdated": "2024-08-04T09:56:28.335Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Log in or create an account to share your comment.

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

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.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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.