{"id":"CVE-2024-13803","aliases":["EUVD-2024-53904","GHSA-c8qg-683p-cf3w"],"status":"published","title":"Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates \u003c= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.","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":"2026-11-11","score":0.00482,"percentile":0.42048,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-02-26T07:01:18Z","modified":"2026-06-17T07:02:45Z","products":[{"vendor":"wpdeveloper","product":"essential_blocks"},{"vendor":"wpdevteam","product":"gutenberg essential blocks – page builder for gutenberg blocks \u0026 patterns"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/efdeca40-e021-478f-af75-c5566ae70735?source=cve","tags":["Third Party Advisory"]},{"url":"http://localhost:1337/wp-content/plugins/essential-blocks/assets/admin/editor/editor.js","tags":["Broken Link"]},{"url":"https://plugins.trac.wordpress.org/changeset/3242493/","tags":["Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-13803"},{"url":"https://plugins.trac.wordpress.org/changeset/3242493"},{"url":"https://github.com/advisories/GHSA-c8qg-683p-cf3w"}],"sources":{"cve":[{"id":"CVE-2024-13803","title":"Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates \u003c= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting","description":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.","status":"published","published":"2025-02-26T07:01:18.758Z","modified":"2026-04-08T17:32:07.075Z","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":"2026-11-02T14:34:13.321108Z"}],"euvd":[{"id":"EUVD-2024-53904","description":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.","status":"published","published":"2025-02-26T07:01:18Z","modified":"2026-04-08T17:32:07Z","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":"2026-11-02T19:24:34.419469Z"}],"ghsa":[{"id":"GHSA-c8qg-683p-cf3w","title":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress...","description":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.","status":"published","published":"2025-04-10T18:31:59Z","modified":"2025-04-10T18:31:59Z","cvss":[{"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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:01:03.805326Z"}],"nvd":[{"id":"CVE-2024-13803","description":"The Essential Blocks – Page Builder Gutenberg Blocks, Patterns \u0026 Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.","status":"published","published":"2025-02-26T13:15:38.027Z","modified":"2026-06-17T07:02:45.157Z","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":"2026-11-02T14:10:44.508862Z"}]}}