{"id":"CVE-2024-11782","aliases":["EUVD-2024-34199","GHSA-8r8p-6qcr-pv6h"],"status":"published","title":"WP Mailster \u003c= 1.8.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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":"2026-11-12","score":0.00314,"percentile":0.24684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2024-12-03T09:32:01Z","modified":"2026-06-17T06:58:26Z","products":[{"vendor":"brandtoss","product":"wp mailster"},{"vendor":"wpmailster","product":"wp_mailster"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/909beed4-06a9-4ec4-bf00-4072a38af82b?source=cve","tags":["Third Party Advisory"]},{"url":"https://plugins.trac.wordpress.org/browser/wp-mailster/tags/1.8.17.0/mailster/subscr/SubscriberPlugin.php#L216","tags":["Product"]},{"url":"https://plugins.trac.wordpress.org/changeset/3198497/wp-mailster/trunk/mailster/subscr/SubscriberPlugin.php","tags":["Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-11782"},{"url":"https://github.com/advisories/GHSA-8r8p-6qcr-pv6h"}],"sources":{"cve":[{"id":"CVE-2024-11782","title":"WP Mailster \u003c= 1.8.17.0 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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":"2024-12-03T09:32:01.713Z","modified":"2026-04-08T17:06:48.108Z","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":"2026-11-02T14:34:19.28149Z"}],"euvd":[{"id":"EUVD-2024-34199","description":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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":"2024-12-03T09:32:01Z","modified":"2026-04-08T17:06:48Z","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":"2026-11-02T19:24:49.380512Z"}],"ghsa":[{"id":"GHSA-8r8p-6qcr-pv6h","title":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin...","description":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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":"2024-12-03T12:31:11Z","modified":"2024-12-03T12:31:17Z","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":"2026-11-02T14:59:01.57352Z"}],"nvd":[{"id":"CVE-2024-11782","description":"The WP Mailster plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'mst_subscribe' shortcode in all versions up to, and including, 1.8.17.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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":"2024-12-03T10:15:05.32Z","modified":"2026-06-17T06:58:26.843Z","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"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:38.973941Z"}]}}