{"apiVersion":"1.0","identifier":"CVE-2026-63407","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 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.","publishedAt":"2026-08-19T16:18:37","lastModifiedAt":"2026-08-25T03:16:56","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63407","cvssScore":8.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","epssProbability":0.00271,"riskScore":0.84,"affectedProduct":"Grav API Plugin","affectedVersions":"<1.0.0-rc.16","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-63407","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-63407","en":"https://www.redsauce.net/en/cves/CVE-2026-63407","fr":"https://www.redsauce.net/fr/cves/CVE-2026-63407","pt":"https://www.redsauce.net/pt/cves/CVE-2026-63407","de":"https://www.redsauce.net/de/cves/CVE-2026-63407","sk":"https://www.redsauce.net/sk/cves/CVE-2026-63407","el":"https://www.redsauce.net/el/cves/CVE-2026-63407"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-63407"}}