GHSA-4GPR-P634-922X

Vulnerability from github – Published: 2023-07-25 17:19 – Updated: 2025-04-17 12:44
VLAI
Summary
Cross site scripting via input unit widget
Details

Impact

Authenticated users can inject malicious code in widgets with units, which is then executed both in the element preview (back end) and on the website (front end).

Patches

Update to Contao 4.9.42, 4.13.28 or 5.1.10.

Workarounds

Disable login for all untrusted back end users.

References

https://contao.org/en/security-advisories/cross-site-scripting-in-widgets-with-units

For more information

If you have any questions or comments about this advisory, open an issue in contao/contao.

Credits

Thanks to Christian Pöschl and Fabian Brenner from usd AG for reporting this vulnerability.

Severity
6.6 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/core-bundle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.9.42"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/core-bundle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.10.0"
            },
            {
              "fixed": "4.13.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/core-bundle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.1.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-36806"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-25T17:19:10Z",
    "nvd_published_at": "2023-07-25T19:15:11Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nAuthenticated users can inject malicious code in widgets with units, which is then executed both in the element preview (back end) and on the website (front end).\n\n### Patches\n\nUpdate to Contao 4.9.42, 4.13.28 or 5.1.10.\n\n### Workarounds\n\nDisable login for all untrusted back end users.\n\n### References\n\nhttps://contao.org/en/security-advisories/cross-site-scripting-in-widgets-with-units\n\n### For more information\n\nIf you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).\n\n### Credits\n\nThanks to Christian P\u00f6schl and Fabian Brenner from usd AG for reporting this vulnerability.",
  "id": "GHSA-4gpr-p634-922x",
  "modified": "2025-04-17T12:44:36Z",
  "published": "2023-07-25T17:19:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/contao/contao/security/advisories/GHSA-4gpr-p634-922x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36806"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contao/contao/commit/5c9aff32cfc1f7dc452a045862ac2f86a6b9b4b4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contao/contao/commit/c98585d36baa25fda69c062421e7e7eadc53c82b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/contao/contao/commit/ccb64c777eb0f9c0e6490c9135d80e915d37cd32"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/contao/contao"
    },
    {
      "type": "WEB",
      "url": "https://herolab.usd.de/security-advisories/usd-2023-0020"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross site scripting via input unit widget"
}



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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.
  • 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.



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