{"id":"CVE-2026-15420","aliases":["EUVD-2026-48464","GHSA-cg9r-cc95-vm62"],"status":"published","title":"Nexter Blocks \u003c= 5.0.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary CSS/JS File Deletion via 'plus_name' Parameter","description":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00859,"percentile":0.58708,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2026-07-24T02:31:59Z","modified":"2026-07-24T23:16:49Z","products":[{"vendor":"posimyththemes","product":"nexter blocks – gutenberg blocks, page builder \u0026 ai website builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/85550779-fd46-4130-92f1-b291d4e86b21?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.14/classes/tp-registered-blocks.php#L2985"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.17/classes/tp-registered-blocks.php#L2985"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.17/classes/tp-registered-blocks.php#L2862"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.17/classes/tp-registered-blocks.php#L3521"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.17/classes/tp-registered-blocks.php#L2710"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.14/classes/tp-registered-blocks.php#L2862"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.14/classes/tp-registered-blocks.php#L3521"},{"url":"https://plugins.trac.wordpress.org/browser/the-plus-addons-for-block-editor/tags/4.7.14/classes/tp-registered-blocks.php#L2710"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3614203%40the-plus-addons-for-block-editor\u0026new=3614203%40the-plus-addons-for-block-editor"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15420"},{"url":"https://github.com/advisories/GHSA-cg9r-cc95-vm62"}],"sources":{"cve":[{"id":"CVE-2026-15420","title":"Nexter Blocks \u003c= 5.0.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary CSS/JS File Deletion via 'plus_name' Parameter","description":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.","status":"published","published":"2026-07-24T02:31:59.549Z","modified":"2026-07-24T22:10:12.3Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T13:47:51.033687Z"}],"euvd":[{"id":"EUVD-2026-48464","description":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.","status":"published","published":"2026-07-24T02:31:59Z","modified":"2026-07-24T22:10:12Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:19:38.612768Z"}],"ghsa":[{"id":"GHSA-cg9r-cc95-vm62","title":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is...","description":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.","status":"published","published":"2026-07-24T06:34:11Z","modified":"2026-07-24T06:34:17Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:09:45.939583Z"}],"nvd":[{"id":"CVE-2026-15420","description":"The Nexter Blocks – Gutenberg Blocks, Page Builder \u0026 AI Website Builder plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 5.0.0 via the 'plus_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary JS/CSS files on the server, which can lead to denial of service or destruction of critical plugin and theme assets.","status":"published","published":"2026-07-24T04:16:51.857Z","modified":"2026-07-24T23:16:49.84Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:32.473901Z"}]}}