{"id":"CVE-2026-4088","aliases":["EUVD-2026-24652","GHSA-6jwx-v327-2xh9"],"status":"published","title":"Switch CTA Box \u003c= 1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode","description":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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.","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":"2026-11-10","score":0.00354,"percentile":0.29446,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-04-22T07:45:31Z","modified":"2026-06-17T10:55:58Z","products":[{"vendor":"wpshouter","product":"switch cta box"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/19a3fc90-b81c-4451-80e0-cead99a2dcd9?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/trunk/inc/box_display_template.php#L18"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/tags/1.1/inc/box_display_template.php#L18"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/trunk/inc/box_display_template.php#L14"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/tags/1.1/inc/box_display_template.php#L14"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/trunk/inc/box_display_template.php#L2"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/tags/1.1/inc/box_display_template.php#L2"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/trunk/inc/shortcode_setup.php#L8"},{"url":"https://plugins.trac.wordpress.org/browser/switch-cta-box/tags/1.1/inc/shortcode_setup.php#L8"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4088"},{"url":"https://github.com/advisories/GHSA-6jwx-v327-2xh9"}],"sources":{"cve":[{"id":"CVE-2026-4088","title":"Switch CTA Box \u003c= 1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode","description":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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.","status":"published","published":"2026-04-22T07:45:31.826Z","modified":"2026-04-23T13:42:30.311Z","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":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-24652","description":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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.","status":"published","published":"2026-04-22T07:45:31Z","modified":"2026-04-23T13:42:30Z","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":"2026-11-02T19:24:19.171803Z"}],"ghsa":[{"id":"GHSA-6jwx-v327-2xh9","title":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ...","description":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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.","status":"published","published":"2026-04-22T09:31:32Z","modified":"2026-04-22T09:31:40Z","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":"2026-11-02T15:07:34.1405Z"}],"nvd":[{"id":"CVE-2026-4088","description":"The Switch CTA Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wppw_cta_box' shortcode in all versions up to, and including, 1.1. This is due to insufficient input sanitization and output escaping on user-supplied post meta values including 'cta_box_button_link', 'cta_box_button_id', 'cta_box_button_text', and 'cta_box_description'. The shortcode reads post meta from a user-specified post ID and echoes these values directly into HTML output without any escaping functions (no esc_attr(), esc_url(), or esc_html()). 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.","status":"published","published":"2026-04-22T09:16:22.56Z","modified":"2026-06-17T10:55:58.397Z","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":"2026-11-02T14:12:15.493943Z"}]}}