Grav Lightbox Gallery 1.1.0 before 1.3.2 File Read via Shortcode Media Actions
Grav Lightbox Gallery plugin 1.1.0 before 1.3.2 on Grav 2.x calls any medium method named in image, thumb or thumb_options shortcode values without core's allowed media action check. A page editor can chain addMetaFile with value, toYaml or toJson to read ser…