{"api_version":"1","generated_at":"2026-08-25T14:50:37+00:00","cve":"CVE-2026-63408","urls":{"html":"https://cve.report/CVE-2026-63408","api":"https://cve.report/api/cve/CVE-2026-63408.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63408","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63408"},"summary":{"title":"Grav API Plugin: JWT Access Token Accepted via `?token=` URL Query Parameter","description":"Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content.  Prior to 1.0.0-rc.16, the Grav API plugin JwtAuthenticator::extractBearerToken() accepts a JWT from the token URL query parameter on every /api/v1 route, including state-changing endpoints. Request URLs consequently expose valid access tokens through Apache, proxy, and CDN logs, browser history, and Referer headers, allowing a party with access to those records to reuse the token with the owner's API privileges. This issue is fixed in version 1.0.0-rc.16.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-08-19 16:18:38","updated_at":"2026-08-19 19:17:22"},"problem_types":["CWE-598","CWE-598 CWE-598: Use of GET Request Method With Sensitive Query Strings"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16","name":"https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq","name":"https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9","name":"https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63408","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63408","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"getgrav","product":"grav-plugin-api","version":"affected < 1.0.0-rc.16","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"63408","cve":"CVE-2026-63408","epss":"0.003600000","percentile":"0.293400000","score_date":"2026-08-20","updated_at":"2026-08-21 00:13:52"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-63408","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-08-19T18:17:25.345538Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-08-19T18:18:38.809Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"grav-plugin-api","vendor":"getgrav","versions":[{"status":"affected","version":"< 1.0.0-rc.16"}]}],"descriptions":[{"lang":"en","value":"Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content.  Prior to 1.0.0-rc.16, the Grav API plugin JwtAuthenticator::extractBearerToken() accepts a JWT from the token URL query parameter on every /api/v1 route, including state-changing endpoints. Request URLs consequently expose valid access tokens through Apache, proxy, and CDN logs, browser history, and Referer headers, allowing a party with access to those records to reuse the token with the owner's API privileges. This issue is fixed in version 1.0.0-rc.16."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-598","description":"CWE-598: Use of GET Request Method With Sensitive Query Strings","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-19T15:53:08.681Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq"},{"name":"https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9","tags":["x_refsource_MISC"],"url":"https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9"},{"name":"https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16","tags":["x_refsource_MISC"],"url":"https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16"}],"source":{"advisory":"GHSA-4hpj-wmpw-ghwq","discovery":"UNKNOWN"},"title":"Grav API Plugin: JWT Access Token Accepted via `?token=` URL Query Parameter"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-63408","datePublished":"2026-08-19T15:53:08.681Z","dateReserved":"2026-07-16T19:20:28.987Z","dateUpdated":"2026-08-19T18:18:38.809Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-19 16:18:38","lastModifiedDate":"2026-08-19 19:17:22","problem_types":["CWE-598","CWE-598 CWE-598: Use of GET Request Method With Sensitive Query Strings"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-19T18:17:25.345538Z","id":"CVE-2026-63408","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63408","Ordinal":"1","Title":"Grav API Plugin: JWT Access Token Accepted via `?token=` URL Que","CVE":"CVE-2026-63408","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63408","Ordinal":"1","NoteData":"Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content.  Prior to 1.0.0-rc.16, the Grav API plugin JwtAuthenticator::extractBearerToken() accepts a JWT from the token URL query parameter on every /api/v1 route, including state-changing endpoints. Request URLs consequently expose valid access tokens through Apache, proxy, and CDN logs, browser history, and Referer headers, allowing a party with access to those records to reuse the token with the owner's API privileges. This issue is fixed in version 1.0.0-rc.16.","Type":"Description","Title":"Grav API Plugin: JWT Access Token Accepted via `?token=` URL Que"}]}}}