Vulnerabilities in pkg:maven/org.xwiki.platform/xwiki-platform-rest-server

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-qrvh-r3f2-9h4r",
  "modified" : "2026-05-26T18:58:19Z",
  "published" : "2026-05-26T18:58:19Z",
  "aliases" : [ "CVE-2026-33137" ],
  "summary" : "XWiki Platform has an Unauthenticated XAR Import via REST /wikis/{wikiName}",
  "details" : "### Impact\n\n`POST /wikis/{wikiName}` executes a XAR import without performing any authentication or authorization checks, allowing an unauthenticated attacker to create or update documents in the target wiki\n\n### Patches\n\nThis vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, 18.0.1 and 18.1.0-rc-1.\n\n### Workarounds\n\nXWiki is not aware of any workarounds other than adding a rule into an HTTP proxy to prevent access POST request in the `/wikis/{wikiName}[/]` endpoint.\n\n### Resources\n\n* https://jira.xwiki.org/browse/XWIKI-23953\n* https://github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f\n\n### For more information\n\nIf there are any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Send an email to the [Security Mailing List](mailto:security@xwiki.org)\n\n### Attribution\n\nReported by Sho Odagiri (GMO Cybersecurity by Ierae, Inc.).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rest-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.10.6"
      }, {
        "fixed" : "16.10.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rest-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "17.0.0-rc-1"
      }, {
        "fixed" : "17.4.9"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rest-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "17.5.0"
      }, {
        "fixed" : "17.10.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-rest-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "18.0.0-rc-1"
      }, {
        "fixed" : "18.1.0-rc-1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4r"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-33137"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-23953"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-26T18:58:19Z",
    "nvd_published_at" : "2026-05-20T20:16:37Z"
  }
}