Grav CMS v1.7.x and before is vulnerable to XML External Entity (XXE) through the SVG file upload functionality in the admin panel and File Manager plugin.
Exploitability
AV:NAC:LPR:LUI:NScope
S:UImpact
C:HI:LA:L7.6/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L