CVE-2026-16090 GamiPress <= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via gamipress_achievement Shortcode

The GamiPress – Gamification plugin to reward points, achievements, badges & ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'headingsize' Shortcode Attribute in 'gamipressachievement' in all versions up to, and including, 7.9.9.1 due to insufficient input...