GHSA-6QW9-4VV5-JR97 Grav: Stored XSS via Markdown audio/video media <source> URL

Target: github.com/getgrav/grav Affected resource: Grav\Common\Media\Traits\AudioMediaTrait / VideoMediaTrait sourceParsedownElement — verified on 2.0.13 latest stable and develop HEAD 5a7070f Severity: Medium 6.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N — anchored to the sibling script-XSS...