{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63407","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-16T19:20:28.987Z","datePublished":"2026-08-19T15:51:36.784Z","dateUpdated":"2026-08-19T15:51:36.784Z"},"containers":{"cna":{"title":"Grav API Plugin: CORS 'Access-Control-Allow-Origin: *' on Authenticated API Responses","problemTypes":[{"descriptions":[{"cweId":"CWE-942","lang":"en","description":"CWE-942: Permissive Cross-domain Policy with Untrusted Domains","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2"},{"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"}],"affected":[{"vendor":"getgrav","product":"grav-plugin-api","versions":[{"version":"< 1.0.0-rc.16","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-19T15:51:36.784Z"},"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 CorsMiddleware returns Access-Control-Allow-Origin: * and permissive OPTIONS responses for authenticated /api/v1 endpoints. JavaScript from any origin can submit an attacker-obtained JWT through the Authorization or X-API-Token header, read the authenticated response, and perform write operations with the token owner's privileges, enabling data exfiltration and account modification. This issue is fixed in version 1.0.0-rc.16."}],"source":{"advisory":"GHSA-93px-98wh-6fj2","discovery":"UNKNOWN"}}}}