{"apiVersion":"1.0","identifier":"CVE-2026-61607","description":"Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site-s content. Prior to 1.0.2, the Grav API plugin POST /api/v1/media pipeline in HandlesMediaUploads::processUploadedFile() validates an SVG filename extension but does not invoke Security::sanitizeSVG(). An attacker with api.media.write permission can store an SVG containing JavaScript, and the server returns the file as Content-Type: image/svg+xml so the script executes when a victim opens it, allowing session data theft and authenticated actions. This issue is fixed in version 1.0.2.","publishedAt":"2026-08-19T16:18:16","lastModifiedAt":"2026-08-21T20:16:37","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61607","cvssScore":4.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","epssProbability":0.00208,"riskScore":0.47,"affectedProduct":"Grav API Plugin","affectedVersions":"<1.0.2","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-61607","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-61607","en":"https://www.redsauce.net/en/cves/CVE-2026-61607","fr":"https://www.redsauce.net/fr/cves/CVE-2026-61607","pt":"https://www.redsauce.net/pt/cves/CVE-2026-61607","de":"https://www.redsauce.net/de/cves/CVE-2026-61607","sk":"https://www.redsauce.net/sk/cves/CVE-2026-61607","el":"https://www.redsauce.net/el/cves/CVE-2026-61607"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-61607"}}