CVE-2023-37908: Xwiki rendering xml Xwiki-rendering-xml Improper Neutralization Of Invalid Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-663w-2xp3-5739",
  "modified" : "2023-11-01T06:06:17Z",
  "published" : "2023-10-25T21:02:49Z",
  "aliases" : [ "CVE-2023-37908" ],
  "summary" : "org.xwiki.rendering:xwiki-rendering-xml Improper Neutralization of Invalid Characters in Identifiers in Web Pages vulnerability",
  "details" : "### Impact\nThe cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki: \n\n```\n[[Link1>>https://XWiki.example.com||/onmouseover=\"alert('XSS1')\"]]\n```\n\nWhen a user moves the mouse over this link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance.\n\nWhile this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation.\n\nNote that while versions below 14.6 are not vulnerable to this particular vulnerability, they are still vulnerable to XSS through attributes in XWiki syntax, see [the corresponding advisory](https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp).\n\n### Patches\nThis problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again.\n\n### Workarounds\nThere are no known workarounds apart from upgrading to a version including the fix.\n\n### References\n* https://jira.xwiki.org/browse/XRENDERING-697\n* https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki](https://jira.xwiki.org/)\n* Email us at [XWiki Security mailing-list](mailto:security@xwiki.org)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.rendering:xwiki-rendering-xml"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.6-rc-1"
      }, {
        "fixed" : "14.10.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-37908"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-rendering"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XRENDERING-697"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79", "CWE-83", "CWE-86" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-25T21:02:49Z",
    "nvd_published_at" : "2023-10-25T18:17:28Z"
  }
}