github - ghsa-mjfh-rmmm-2mm7

GHSA-MJFH-RMMM-2MM7

Vulnerability from github – Published: 2022-05-24 17:40 – Updated: 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.

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{
  "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 – Updated: 2024-08-04 09:56

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.

Severity ?

No CVSS data available.

CWE

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

Assigner

hackerone

References

URL

Tags

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

Impacted products

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

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JSON

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          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "n/a",
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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-MJFH-RMMM-2MM7

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

Tags

Sightings

Nomenclature