GHSA-W3F4-8PJ2-599W Grav: Path Traversal in ImageMedium::watermark() — arbitrary file disclosure via publicly-cached images

Reported by: Nihad Huseynli @nihaddhuseynli https://github.com/nihaddhuseynli — [email protected] ▎ Note: I attempted to report this via [email protected] first, per SECURITY.md, but the email bounced with 550 5.1.1 Address does not exist. Filing directly here instead. Path Traversal i...