{"id":"CVE-2026-65897","state":"PUBLISHED","title":"Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups","description":"Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.","publishedAt":"2026-07-23T11:42:17.453Z","updatedAt":"2026-08-28T15:18:30.122Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["getgrav grav"],"affected":[{"vendor":"getgrav","product":"grav","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.0.10","versionType":"semver"},{"version":"1.0.10","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv","https://github.com/getgrav/grav-plugin-api/commit/f9438d4e71389b1041ac60b69b0b5714ecfa3bdd","https://github.com/getgrav/grav/commit/345e79e3abf8c15f80e612a09f6643300071324b","https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/65xxx/CVE-2026-65897.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-65897","state":"PUBLISHED","datePublished":"2026-07-23T11:42:17.453Z","dateUpdated":"2026-08-28T15:18:30.122Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-23T11:03:13.092Z"},"containers":{"cna":{"title":"Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups","descriptions":[{"lang":"en","value":"Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions."}],"affected":[{"vendor":"getgrav","product":"grav","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.0.10","versionType":"semver"},{"version":"1.0.10","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv","name":"GitHub Security Advisory (GHSA-m86m-jjcg-gcvv)","tags":["vendor-advisory"]},{"url":"https://github.com/getgrav/grav-plugin-api/commit/f9438d4e71389b1041ac60b69b0b5714ecfa3bdd","name":"Patch Commit","tags":["patch"]},{"url":"https://github.com/getgrav/grav/commit/345e79e3abf8c15f80e612a09f6643300071324b","name":"Patch Commit","tags":["patch"]},{"url":"https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups","name":"VulnCheck Advisory: Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-08-28T15:18:30.122Z"},"datePublic":"2026-07-09T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*","versionEndExcluding":"1.0.10"}]}]}],"credits":[{"lang":"en","value":"izumi-hyun","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-23T15:24:56.000746Z","id":"CVE-2026-65897","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":"2026-07-23T15:26:05.842Z"}}]}}}