CVE-2023-34464: Xwiki platform web Cross-Site Scripting Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fp7h-f9f5-x4q7",
  "modified" : "2023-06-20T16:44:35Z",
  "published" : "2023-06-20T16:44:35Z",
  "aliases" : [ "CVE-2023-34464" ],
  "summary" : "XWiki vulnerable to stored cross-site scripting via any wiki document and the displaycontent/rendercontent template",
  "details" : "### Impact\n\nAny user who can edit a document in a wiki like the user profile can create a stored XSS attack by putting plain HTML code into that document and then tricking another user to visit that document with the `displaycontent` or `rendercontent` template and plain output syntax. For example, edit any document with the wiki editor and set the content to `<script>alert(1)</script>` , save and then append the parameters `?viewer=displaycontent&sheet=&outputSyntax=plain`. If this displays an alert, the installation is vulnerable. If a user with programming rights is tricked into visiting such a URL, arbitrary actions be performed with this user's rights, impacting the confidentiality, integrity, and availability of the whole XWiki installation.\n\n### Patches\nThis has been patched in XWiki 14.4.8, 14.10.5 and 15.1RC1 by setting the content type of the response to plain text when the output syntax is not an HTML syntax.\n\n### Workarounds\nThe [patch](https://github.com/xwiki/xwiki-platform/commit/53e8292a31ec70fba5e1d705a4ac443658b9e6df#diff-e332fba67335bd2202bdac144be7cd244a16cef0ccee741f9c20025a981027d5) can be manually applied to the `rendercontent.vm` template in an existing installation to patch this vulnerability without upgrading.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-20290\n* https://github.com/xwiki/xwiki-platform/commit/53e8292a31ec70fba5e1d705a4ac443658b9e6df\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.1"
      }, {
        "fixed" : "14.4.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-web-templates"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "14.4.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-web-templates"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "14.5"
      }, {
        "fixed" : "14.10.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-web-templates"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.0-rc-1"
      }, {
        "fixed" : "15.1-rc-1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-fp7h-f9f5-x4q7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-34464"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/53e8292a31ec70fba5e1d705a4ac443658b9e6df"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-20290"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-20T16:44:35Z",
    "nvd_published_at" : "2023-06-23T15:15:09Z"
  }
}