{"id":"CVE-2026-12477","aliases":["EUVD-2026-59856","GHSA-5w9q-5r59-3g9f"],"status":"published","title":"Gravity Booster \u003c= 5.26 - Authenticated (Editor+) Stored Cross-Site Scripting via 'stylerSettings' Parameter","description":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00327,"percentile":0.25987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-16T04:24:52Z","modified":"2026-08-20T12:48:10Z","products":[{"vendor":"wpmonks","product":"gravity booster – styles \u0026 layouts for gravity forms"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/413e5515-6cc9-4fa9-908e-2dc68778f5cb?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L76"},{"url":"https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L147"},{"url":"https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/display/class-styles.php#L148"},{"url":"https://plugins.trac.wordpress.org/browser/styles-and-layouts-for-gravity-forms/tags/5.26/includes/admin/fetch/stla-admin-fetch-content-area.php#L290"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3637650%40styles-and-layouts-for-gravity-forms\u0026new=3637650%40styles-and-layouts-for-gravity-forms"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12477"},{"url":"https://github.com/advisories/GHSA-5w9q-5r59-3g9f"}],"sources":{"cve":[{"id":"CVE-2026-12477","title":"Gravity Booster \u003c= 5.26 - Authenticated (Editor+) Stored Cross-Site Scripting via 'stylerSettings' Parameter","description":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T04:24:52.011Z","modified":"2026-08-17T15:41:58.131Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-59856","description":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T04:24:52Z","modified":"2026-08-17T15:41:58Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:49.335011Z"}],"ghsa":[{"id":"GHSA-5w9q-5r59-3g9f","title":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to...","description":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T06:30:23Z","modified":"2026-08-16T06:30:24Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:31.619287Z"}],"nvd":[{"id":"CVE-2026-12477","description":"The Gravity Booster – Styles \u0026 Layouts for Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5.26 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T05:16:45.81Z","modified":"2026-08-20T12:48:10.287Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:38.647684Z"}]}}