GHSA-HHQJ-CFJX-VJ25

Vulnerability from github – Published: 2022-03-02 00:00 – Updated: 2022-03-10 16:00
VLAI?
Summary
Cross site scripting in reveal.js
Details

The onmessage event listener in /plugin/notes/speaker-view.html does not check the origin of postMessage before adding the content to the webpage. The vulnerable code allows any origin to postMessage on the browser window and feeds attacker's input to parts using which attacker can execute arbitrary javascript code on victim's browser window hosting reveal.js

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": "npm",
        "name": "reveal.js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-0776"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-03-02T21:28:45Z",
    "nvd_published_at": "2022-03-01T09:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The onmessage event listener in /plugin/notes/speaker-view.html does not check the origin of postMessage before adding the content to the webpage. The vulnerable code allows any origin to postMessage on the browser window and feeds attacker\u0027s input to parts using which attacker can execute arbitrary javascript code on victim\u0027s browser window hosting reveal.js",
  "id": "GHSA-hhqj-cfjx-vj25",
  "modified": "2022-03-10T16:00:14Z",
  "published": "2022-03-02T00:00:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0776"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hakimel/reveal.js/commit/32cdd3b1872ba8e2267c9e87ae216cb55f40f4d2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hakimel/reveal.js"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/be2b7ee4-f487-42e1-874a-6bcc410e4001"
    }
  ],
  "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": "Cross site scripting in reveal.js"
}


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  • 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.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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