Grav Plugin Shortcode Core
Monthly
Stored XSS in Grav Shortcode Core Plugin (prior to 6.2.2) allows an authenticated user with admin.pages permission to inject arbitrary JavaScript into page content by supplying a crafted shortcode attribute value that breaks out of an HTML attribute context. The plugin's shortcode syntax bypasses Grav's save-time XSS filter because shortcode notation never contains a literal less-than character, and multiple attribute handlers (ColorShortcode, DivShortcode, ColumnsShortcode, and others) then concatenate the raw parameter directly into rendered HTML. The stored payload executes in the browser of any visitor or administrator who subsequently views the affected page. No public exploit or CISA KEV listing is identified at time of analysis.
Stored XSS in Grav Shortcode Core Plugin (prior to 6.2.2) allows an authenticated user with admin.pages permission to inject arbitrary JavaScript into page content by supplying a crafted shortcode attribute value that breaks out of an HTML attribute context. The plugin's shortcode syntax bypasses Grav's save-time XSS filter because shortcode notation never contains a literal less-than character, and multiple attribute handlers (ColorShortcode, DivShortcode, ColumnsShortcode, and others) then concatenate the raw parameter directly into rendered HTML. The stored payload executes in the browser of any visitor or administrator who subsequently views the affected page. No public exploit or CISA KEV listing is identified at time of analysis.