{"id":"CVE-2026-61607","title":"Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content","summary":"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 filen…","severity":"medium","cvss":4.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-79"],"published":"2026-08-19","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:13:25.910","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61607","references":[{"url":"https://github.com/getgrav/grav-plugin-api/commit/d25eedb84a387f2c71b12a374f2a4b3d74339a7e","label":"security-advisories@github.com"},{"url":"https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.2","label":"security-advisories@github.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p","label":"security-advisories@github.com"},{"url":"https://github.com/getgrav/grav/security/advisories/GHSA-7vhm-8x52-2r5p","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00255,"epssPercentile":0.17408,"ingestedAt":"2026-09-09T21:22:45.539Z","slug":"CVE-2026-61607","body":"## Overview\n\nGrav 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}