{"cve":"CVE-2026-33137","nvd":{"published":"2026-05-20T20:16:37.567","modified":"2026-07-23T12:10:00.110","status":"Deferred","description":"XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki Platform is a generic wiki platform. In versions starting with 15.10.6 and prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17, the POST /wikis/{wikiName} API executes a XAR import without performing any authentication or authorization checks, allowing an unauthenticated attacker to create or update documents in the target wiki. This vulnerability has been patched in XWiki 16.10.17, 17.4.9, 17.10.3, 18.0.1 and 18.1.0-rc-1.","cvss_v4":{"vector":"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","score":9.3},"cvss_v3":null,"cwes":["CWE-862"],"references":["https://github.com/xwiki/xwiki-platform/commit/4b7b95b79256374d487e9ece1dc48f527966990f","https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qrvh-r3f2-9h4r","https://jira.xwiki.org/browse/XWIKI-23953"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-33137","score":0.00594,"percentile":0.48427,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qrvh-r3f2-9h4r","url":"https://osv.dev/vulnerability/GHSA-qrvh-r3f2-9h4r","summary":"XWiki Platform has an Unauthenticated XAR Import via REST /wikis/{wikiName}","modified":"2026-05-26T19:26:29.502982Z","packages":[{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-rest-server","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rest-server","ranges":[">=15.10.6 <16.10.17"],"fixed":["16.10.17"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-rest-server","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rest-server","ranges":[">=17.0.0-rc-1 <17.4.9"],"fixed":["17.4.9"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-rest-server","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rest-server","ranges":[">=17.5.0 <17.10.3"],"fixed":["17.10.3"]},{"ecosystem":"Maven","name":"org.xwiki.platform:xwiki-platform-rest-server","purl":"pkg:maven/org.xwiki.platform/xwiki-platform-rest-server","ranges":[">=18.0.0-rc-1 <18.1.0-rc-1"],"fixed":["18.1.0-rc-1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}