{"id":"CVE-2026-75837","state":"PUBLISHED","title":"Grav before 2.0.14 Privilege Escalation via Group Access Field","description":"Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.","publishedAt":"2026-08-18T11:19:47.200Z","updatedAt":"2026-10-08T15:24:59.436Z","severity":{"score":9.3,"label":"Critical","version":"4.0","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","source":"VulnCheck"},"assigner":"VulnCheck","products":["getgrav grav"],"affected":[{"vendor":"getgrav","product":"grav","packageURL":"pkg:composer/getgrav/grav","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.0.14","versionType":"semver"},{"version":"2.0.14","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx","https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/75xxx/CVE-2026-75837.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-75837","state":"PUBLISHED","datePublished":"2026-08-18T11:19:47.200Z","dateUpdated":"2026-10-08T15:24:59.436Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-18T10:59:33.701Z"},"containers":{"cna":{"title":"Grav before 2.0.14 Privilege Escalation via Group Access Field","descriptions":[{"lang":"en","value":"Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities."}],"affected":[{"vendor":"getgrav","product":"grav","packageURL":"pkg:composer/getgrav/grav","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.0.14","versionType":"semver"},{"version":"2.0.14","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-xhfv-7758-r9hx)"},{"url":"https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field","name":"VulnCheck Advisory: Grav before 2.0.14 Privilege Escalation via Group Access Field","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:24:59.436Z"},"datePublic":"2026-08-03T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*","versionEndExcluding":"2.0.14"}]}]}],"credits":[{"lang":"en","value":"manus-use","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-19T14:21:40.848615Z","id":"CVE-2026-75837","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-19T14:22:08.426Z"}}]}}}