{"id":"CVE-2026-2518","aliases":["EUVD-2026-31412","GHSA-jjqp-72fq-xmqp"],"status":"published","title":"FastX \u003c= 1.0.2 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Installation and Activation","description":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.","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":"2026-11-09","score":0.0023,"percentile":0.13957,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-05-22T04:29:03Z","modified":"2026-07-23T16:10:00Z","products":[{"vendor":"wpxpo","product":"fastx"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/6f5c4194-4f97-4f85-af90-e983ba9ce3a6?source=cve"},{"url":"https://themes.trac.wordpress.org/browser/fastx/1.0.2/classes/Initialization.php#L264"},{"url":"https://themes.trac.wordpress.org/browser/fastx/1.0.2/classes/Initialization.php#L249"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2518"},{"url":"https://github.com/advisories/GHSA-jjqp-72fq-xmqp"}],"sources":{"cve":[{"id":"CVE-2026-2518","title":"FastX \u003c= 1.0.2 - Missing Authorization to Authenticated (Subscriber+) Limited Plugin Installation and Activation","description":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.","status":"published","published":"2026-05-22T04:29:03.59Z","modified":"2026-05-22T12:21:18.173Z","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-862"],"updated_at":"2026-11-02T13:48:46.911326Z"}],"euvd":[{"id":"EUVD-2026-31412","description":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.","status":"published","published":"2026-05-22T04:29:03Z","modified":"2026-05-22T12:21:18Z","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":"2026-11-02T18:21:12.869457Z"}],"ghsa":[{"id":"GHSA-jjqp-72fq-xmqp","title":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and...","description":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.","status":"published","published":"2026-05-22T06:31:38Z","modified":"2026-05-22T06:31:44Z","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-862"],"updated_at":"2026-11-02T15:08:15.652571Z"}],"nvd":[{"id":"CVE-2026-2518","description":"The FastX theme for WordPress is vulnerable to unauthorized limited plugin installation and activation due to missing capability checks on the 'ultp_install_callback' and 'ultp_activate_callback' functions in all versions up to, and including, 1.0.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the PostX plugin.","status":"published","published":"2026-05-22T05:16:24.66Z","modified":"2026-07-23T16:10:00.137Z","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-862"],"updated_at":"2026-11-02T14:12:20.131508Z"}]}}