{"id":"CVE-2026-84796","summary":"Craft CMS 5.0.0-RC1 before 5.10.11 GraphQL Entry Mutation Site Scope Bypass","details":"Craft CMS versions before 5.10.11 contain a site scope bypass vulnerability in GraphQL entry mutation resolvers that fail to validate siteId through ArgumentManager::prepareArguments(). Attackers with tokens scoped to one site can read, modify, or delete entries across unauthorized sites by passing siteId directly in mutation arguments.","aliases":["CVE-2026-79990","GHSA-3wcr-p33w-528f"],"modified":"2026-09-03T03:55:36.319209847Z","published":"2026-09-02T11:11:12.215Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84796.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84796.json"},{"type":"ADVISORY","url":"https://github.com/craftcms/cms/security/advisories/GHSA-3wcr-p33w-528f"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84796"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/craft-cms-5.0.0-rc1-before-5.10.11-graphql-entry-mutation-site-scope-bypass"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/craftcms/cms","events":[{"introduced":"04755d93f86d07cc183db47db8a0eee106892e30"},{"fixed":"9dece66d9d35f9f2615f5f2107c98d2334c71cfc"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"5.0.0-RC1"},{"fixed":"5.10.11"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-84796.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}