{
  "GSD": {
    "alias": "CVE-2023-27480",
    "id": "GSD-2023-27480"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "aliases": [
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      "details": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with edit rights on a document can trigger an XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. Users unable to upgrade may apply the patch `e3527b98fd` manually.",
      "id": "GSD-2023-27480",
      "modified": "2023-12-13T01:20:56.110977Z",
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            "name": "https://jira.xwiki.org/browse/XWIKI-20320",
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      "advisories": [
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          "affected_range": "[1.1-milestone-3,13.10.11),[14.0,14.4.7),[14.5,14.10-rc-1)",
          "affected_versions": "All versions starting from 1.1-milestone-3 before 13.10.11, all versions starting from 14.0 before 14.4.7, all versions starting from 14.5 before 14.10-rc-1",
          "cwe_ids": [
            "CWE-1035",
            "CWE-611",
            "CWE-707",
            "CWE-937"
          ],
          "date": "2023-03-08",
          "description": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with edit rights on a document can trigger an XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. Users unable to upgrade may apply the patch `e3527b98fd` manually.",
          "fixed_versions": [
            "13.10.11",
            "14.4.7",
            "14.10-rc-1"
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          "identifier": "CVE-2023-27480",
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            "GHSA-gx4f-976g-7g6v",
            "CVE-2023-27480"
          ],
          "not_impacted": "All versions before 1.1-milestone-3, all versions starting from 13.10.11 before 14.0, all versions starting from 14.4.7 before 14.5, all versions starting from 14.10-rc-1",
          "package_slug": "maven/org.xwiki.platform/xwiki-platform-xar-model",
          "pubdate": "2023-03-08",
          "solution": "Upgrade to versions 13.10.11, 14.4.7, 14.10-rc-1 or above. *Note*: 14.10-rc-1 may be an unstable version. Use caution.",
          "title": "Improper Restriction of XML External Entity Reference",
          "urls": [
            "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gx4f-976g-7g6v",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-27480",
            "https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434",
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          "impactScore": 4.0
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      },
      "lastModifiedDate": "2023-03-14T16:57Z",
      "publishedDate": "2023-03-07T19:15Z"
    }
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.1-milestone-3"
            },
            {
              "fixed": "13.10.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.0"
            },
            {
              "fixed": "14.4.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xar-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.5"
            },
            {
              "fixed": "14.10-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27480"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-08T17:19:30Z",
    "nvd_published_at": "2023-03-07T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nAny user with edit rights on a document can trigger a XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host.\n\nExample to reproduce:\n* Create a forget XAR file and inside it, have the following `package.xml` content:\n  ```xml\n  \u003c?xml version=\"1.0\" encoding=\"UTF-8\"?\u003e\n  \u003c!DOCTYPE foo [ \u003c!ENTITY xxe SYSTEM \"file:///etc/passwd\"\u003e ]\u003e\n\n  \u003cpackage\u003e\n  \u003cinfos\u003e\n  \u003cname\u003e\u0026xxe;\u003c/name\u003e\n  \u003cdescription\u003e \u0026xxe; Helper pages for creating and listing Class/Template/Sheets\u003c/description\u003e\n  \u003clicence\u003e\u003c/licence\u003e\n  \u003cauthor\u003eXWiki.Admin\u003c/author\u003e\n  ...\n  ```\n* Upload it onto a wiki page (e.g. `XXE`) as an attachment (e.g. `test.xar`).\n* Call the page using `http://localhost:8080/xwiki/bin/view/Main/XXE?sheet=XWiki.AdminImportSheet\u0026file=test.xar`\n\nYou\u0027ll then notice that the displayed UI contains the content of the `/etc/passwd` file.\n\n### Patches\nThe vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1.\n\n### Workarounds\nYou\u0027d need to get XWiki Platform sources and apply the changes from https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434 to the `XarPackage` java class and then copy the modified version to your `WEB-INF/classes` directory (or rebuild the `xwiki-platform-xar-model` maven module and replace the one found in `WEB-INF/lib/`).\n\n### References\n* https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434\n* https://jira.xwiki.org/browse/XWIKI-20320\n\n### For more information\nIf you have any questions or comments about this advisory:\n*    Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n*    Email us at [Security Mailing List](mailto:security@xwiki.org)\n",
  "id": "GHSA-gx4f-976g-7g6v",
  "modified": "2023-03-08T17:19:30Z",
  "published": "2023-03-08T17:19:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gx4f-976g-7g6v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27480"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20320"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Platform vulnerable to data leak via Improper Restriction of XML External Entity Reference"
}