{"id":"CVE-2026-16090","aliases":["EUVD-2026-51750","GHSA-vqxc-cxjv-jp2h"],"status":"published","title":"GamiPress \u003c= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via gamipress_achievement Shortcode","description":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in 'gamipress_achievement' in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress save-time wp_kses_post does not neutralize this payload because the injected value is stored inside a shortcode attribute rather than as a raw HTML tag, and is only emitted into HTML at render time without escaping.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00331,"percentile":0.26704,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-01T07:49:48Z","modified":"2026-08-12T21:00:37Z","products":[{"vendor":"rubengc","product":"gamipress – gamification plugin to reward points, achievements, badges \u0026 ranks in wordpress"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/77727d02-796b-4c5b-ad5d-d1c366760abc?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/filters.php#L542"},{"url":"https://plugins.trac.wordpress.org/browser/gamipress/tags/7.9.9/includes/shortcodes/gamipress_achievement.php#L229"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3619577%40gamipress\u0026new=3619577%40gamipress"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-16090"},{"url":"https://github.com/advisories/GHSA-vqxc-cxjv-jp2h"}],"sources":{"cve":[{"id":"CVE-2026-16090","title":"GamiPress \u003c= 7.9.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via gamipress_achievement Shortcode","description":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in 'gamipress_achievement' in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress save-time wp_kses_post does not neutralize this payload because the injected value is stored inside a shortcode attribute rather than as a raw HTML tag, and is only emitted into HTML at render time without escaping.","status":"published","published":"2026-08-01T07:49:48.357Z","modified":"2026-08-03T17:36:05.6Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:11.24076Z"}],"euvd":[{"id":"EUVD-2026-51750","description":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in 'gamipress_achievement' in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress save-time wp_kses_post does not neutralize this payload because the injected value is stored inside a shortcode attribute rather than as a raw HTML tag, and is only emitted into HTML at render time without escaping.","status":"published","published":"2026-08-01T07:49:48Z","modified":"2026-08-03T17:36:05Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:02:24.01774Z"}],"ghsa":[{"id":"GHSA-vqxc-cxjv-jp2h","title":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress...","description":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in 'gamipress_achievement' in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress save-time wp_kses_post does not neutralize this payload because the injected value is stored inside a shortcode attribute rather than as a raw HTML tag, and is only emitted into HTML at render time without escaping.","status":"published","published":"2026-08-01T09:30:24Z","modified":"2026-08-01T09:30:37Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:01.548476Z"}],"nvd":[{"id":"CVE-2026-16090","description":"The GamiPress – Gamification plugin to reward points, achievements, badges \u0026 ranks in WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'heading_size' Shortcode Attribute in 'gamipress_achievement' in all versions up to, and including, 7.9.9.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress save-time wp_kses_post does not neutralize this payload because the injected value is stored inside a shortcode attribute rather than as a raw HTML tag, and is only emitted into HTML at render time without escaping.","status":"published","published":"2026-08-01T09:17:00.423Z","modified":"2026-08-12T21:00:37.147Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:34.290716Z"}]}}