{
  "schema_version": "1.4.0",
  "id": "GHSA-c5v8-2q4r-5w9v",
  "modified": "2022-09-16T17:36:44Z",
  "published": "2022-09-16T17:36:44Z",
  "aliases": [
    "CVE-2022-36098"
  ],
  "summary": "XWiki Platform Mentions UI vulnerable to Cross-site Scripting",
  "details": "### Impact\nIt's possible to store Javascript or groovy scripts in an mention macro anchor or reference field. The stored code is executed by anyone visiting the page with the mention.\n\nFor example, the example below will create a file at `/tmp/exploit.txt`:\n\n```\n{{mention reference=\"XWiki.Translation\" anchor=\"{{/html~}~}{{async async=~\"true~\" cached=~\"false~\" context=~\"doc.reference~\"~}~}{{groovy~}~}new File(~\"/tmp/exploit.txt~\").withWriter { out -> out.println(~\"owned!~\"); }{{/groovy~}~}{{/async~}~}\"/}}\n```\n\n### Patches\nThis issue has been patched on XWiki 14.4 and 13.10.6.\n\n### Workarounds\nIt's possible to fix the vulnerability by updating `XWiki.Mentions.MentionsMacro` and edit the `Macro code` field of the `XWiki.WikiMacroClass` XObject.\n\n```velocity\n<a id=\"$anchor\" class=\"$stringtool.join($cssClasses, ' ')\" data-reference=\"$services.model.serialize($reference.reference, 'default')\" href=\"$link\">$content</a>\n```\n\nMust be replaced by \n\n```velocity\n<a id=\"$escapetool.xml($anchor)\" class=\"$stringtool.join($cssClasses, ' ')\" data-reference=\"$escapetool.xml($services.model.serialize($reference.reference, 'default'))\" href=\"$escapetool.xml($link)\">\n  $escapetool.xml($content)\n</a>\n```\n\nSee the patches:\n- 14.4: https://github.com/xwiki/xwiki-platform/commit/4f290d87a8355e967378a1ed6aee23a06ba162eb\n- 13.10.6: https://github.com/xwiki/xwiki-platform/commit/4032dc896857597efd169966dc9e2752a9fdd459#diff-4fe22885f772e47d3561a05348f73921669ec12d4413b220383b73c7ae484bc4R608-R610\n\n### References\n\n- https://jira.xwiki.org/browse/XWIKI-19752\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n- Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n- Email us at [Security Mailing List](mailto:security@xwiki.org)",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-mentions-ui"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "12.5-rc-1"
            },
            {
              "fixed": "13.10.6"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-mentions-ui"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "14.0"
            },
            {
              "fixed": "14.4"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-c5v8-2q4r-5w9v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36098"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/4032dc896857597efd169966dc9e2752a9fdd459#diff-4fe22885f772e47d3561a05348f73921669ec12d4413b220383b73c7ae484bc4R608-R610"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/4f290d87a8355e967378a1ed6aee23a06ba162eb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-19752"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "severity": "CRITICAL",
    "github_reviewed": true,
    "github_reviewed_at": "2022-09-16T17:36:44Z",
    "nvd_published_at": "2022-09-08T21:15:00Z"
  }
}