{"id":"CVE-2026-2487","aliases":["EUVD-2026-59847","GHSA-jqwr-hf6q-qx2c"],"status":"published","title":"Admin Custom Login \u003c= 3.6.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Message Above Login Form' Setting","description":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00327,"percentile":0.25988,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-08-16T03:24:52Z","modified":"2026-08-20T12:48:10Z","products":[{"vendor":"weblizar","product":"admin custom login"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/0e81b6c1-5af5-4ad4-92db-9dba76399857?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/login-form-screen.php#L162"},{"url":"https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/login-form-screen.php#L162"},{"url":"https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/includes/login-form-setting/login-form-background.php#L759"},{"url":"https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/includes/login-form-setting/login-form-background.php#L759"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3510948%40admin-custom-login\u0026new=3510948%40admin-custom-login"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2487"},{"url":"https://github.com/advisories/GHSA-jqwr-hf6q-qx2c"}],"sources":{"cve":[{"id":"CVE-2026-2487","title":"Admin Custom Login \u003c= 3.6.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Message Above Login Form' Setting","description":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T03:24:52.35Z","modified":"2026-08-17T17:20:12.175Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:48:46.911326Z"}],"euvd":[{"id":"EUVD-2026-59847","description":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T03:24:52Z","modified":"2026-08-17T17:20:12Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:01:48.853514Z"}],"ghsa":[{"id":"GHSA-jqwr-hf6q-qx2c","title":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via...","description":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T06:30:23Z","modified":"2026-08-16T06:30:23Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:10:31.619287Z"}],"nvd":[{"id":"CVE-2026-2487","description":"The Admin Custom Login plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.6.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-08-16T04:16:27.943Z","modified":"2026-08-20T12:48:10.287Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:38.647684Z"}]}}