CVE-2026-63407

{"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": "2026-08-25T02:12:10.329Z"}, "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"}}, "adp": [{"references": [{"url": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-25T02:11:12.693870Z", "id": "CVE-2026-63407", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T02:12:10.329Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-63407", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-25T02:11:12.693870Z"}}}], "references": [{"url": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T02:11:47.334Z"}}], "cna": {"title": "Grav API Plugin: CORS 'Access-Control-Allow-Origin: *' on Authenticated API Responses", "source": {"advisory": "GHSA-93px-98wh-6fj2", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "getgrav", "product": "grav-plugin-api", "versions": [{"status": "affected", "version": "< 1.0.0-rc.16"}]}], "references": [{"url": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2", "name": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9", "name": "https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9", "tags": ["x_refsource_MISC"]}, {"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", "tags": ["x_refsource_MISC"]}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-942", "description": "CWE-942: Permissive Cross-domain Policy with Untrusted Domains"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T15:51:36.784Z"}}}, "cveMetadata": {"cveId": "CVE-2026-63407", "state": "PUBLISHED", "dateUpdated": "2026-08-25T02:12:10.329Z", "dateReserved": "2026-07-16T19:20:28.987Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-19T15:51:36.784Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "grav-plugin-api", "vendor": "getgrav", "versions": [{"status": "affected", "version": "< 1.0.0-rc.16"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-63407", "lastModified": "2026-09-09T21:13:25.910", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-63407", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-25T02:11:12.693870Z", "version": "2.0.3"}}]}, "published": "2026-08-19T16:18:37.863", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9"}, {"source": "security-advisories@github.com", "url": "https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16"}, {"source": "security-advisories@github.com", "url": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/getgrav/grav/security/advisories/GHSA-93px-98wh-6fj2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-942"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.0.0-rc.16)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "grav-plugin-api", "source": "cna", "vendor": "getgrav"}, "product": "grav-plugin-api", "vendor": "getgrav"}], "created": "2026-08-19T18:45:03.579285+00:00", "updated": "2026-08-20T15:15:03.265048+00:00", "vendors": ["getgrav", "getgrav$PRODUCT$grav-plugin-api"]}