CVE-2024-31987: Xwiki platform oldcore Remote Code Execution Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cv55-v6rw-7r5v",
  "modified" : "2024-04-10T22:01:40Z",
  "published" : "2024-04-10T17:14:47Z",
  "aliases" : [ "CVE-2024-31987" ],
  "summary" : "XWiki Platform remote code execution from account via custom skins support",
  "details" : "### Impact\nAny user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. \n\nTo reproduce, as a user without edit, script or admin right, add an object of class `XWiki.XWikiSkins` to your profile. Name it whatever you want and set the Base Skin to `flamingo`.\nAdd an object of class `XWikiSkinFileOverrideClass` and set the path to `macros.vm` and the content to:\n```\n#macro(mediumUserAvatar $username)\n  #resizedUserAvatar($username 50)\n  $services.logging.getLogger('Skin').error(\"I got programming: $services.security.authorization.hasAccess('programming')\")\n#end\n```\nBack to your profile, click `Test this skin`. Force a refresh, just in case.\nIf the error \"Skin - I got programming: true\" gets logged, the installation is vulnerable.\n\n### Patches\nThis has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1.\n\n### Workarounds\nWe're not aware of any workaround except upgrading.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21478\n* https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39 (>= 15.8 RC1)\n* https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56 (< 15.8 RC1)\n",
  "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-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "6.4-milestone-1"
      }, {
        "fixed" : "14.10.19"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.0-rc-1"
      }, {
        "fixed" : "15.5.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-oldcore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.6-rc-1"
      }, {
        "fixed" : "15.10-rc-1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cv55-v6rw-7r5v"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-31987"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/626d2a5dbf95b4e719ae13bf1a0a9c76e4edd5a2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-21478"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-10T17:14:47Z",
    "nvd_published_at" : "2024-04-10T21:15:07Z"
  }
}