GHSA-X9R5-JXVQ-4387

Vulnerability from github – Published: 2022-01-06 22:48 – Updated: 2022-08-11 19:20
VLAI
Summary
jquery.terminal self XSS on user input
Details

Impact

This is low impact and limited XSS, because code for XSS payload is always visible, but attacker can use other techniques to hide the code the victim sees.

Also if the application use execHash option and execute code from URL the attacker can use this URL to execute his code. The scope is limited because the javascript code inside html attribute used is added to span tag, so no automatic execution like with onerror on images is possible.

Patches

Fixed version 2.31.1

Workarounds

The user can use formatting that wrap whole user input and it's no op.

$.terminal.new_formatter([/([\s\S]+)/g, '[[;;]$1]']);

The fix will only work when user of the library is not using different formatters (e.g. to highlight code in different way).

References

The issue was reported here jcubic/jquery.terminal#727

For more information

If you have any questions or comments about this advisory: * Open an issue in jcubic/jquery.terminal * Email us at jcubic@onet.pl

Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "jquery.terminal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.31.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43862"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79",
      "CWE-80"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-06T19:18:42Z",
    "nvd_published_at": "2021-12-30T15:15:00Z",
    "severity": "LOW"
  },
  "details": "### Impact\nThis is low impact and limited XSS, because code for XSS payload is always visible, but attacker can use other techniques to hide the code the victim sees.\n\nAlso if the application use execHash option and execute code from URL the attacker can use this URL to execute his code. The scope is limited because the javascript code inside html attribute used is added to span tag, so no automatic execution like with `onerror` on images is possible.\n\n### Patches\nFixed version 2.31.1\n\n### Workarounds\nThe user can use formatting that wrap whole user input and it\u0027s no op.\n\n```javascript\n$.terminal.new_formatter([/([\\s\\S]+)/g, \u0027[[;;]$1]\u0027]);\n```\nThe fix will only work when user of the library is not using different formatters (e.g. to highlight code in different way).\n\n### References\nThe issue was reported here [jcubic/jquery.terminal#727](https://github.com/jcubic/jquery.terminal/issues/727)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [jcubic/jquery.terminal](https://github.com/jcubic/jquery.terminal)\n* Email us at [jcubic@onet.pl](mailto:jcubic@onet.pl)\n",
  "id": "GHSA-x9r5-jxvq-4387",
  "modified": "2022-08-11T19:20:18Z",
  "published": "2022-01-06T22:48:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jcubic/jquery.terminal/security/advisories/GHSA-x9r5-jxvq-4387"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43862"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jcubic/jquery.terminal/issues/727"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jcubic/jquery.terminal/commit/77eb044d0896e990d48a9157f0bc6648f81a84b5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jcubic/jquery.terminal"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jcubic/jquery.terminal/releases/tag/2.31.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jquery.terminal self XSS on user input"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.


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