Medium severity4.4NVD Advisory· Published Aug 16, 2026
CVE-2026-2487
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.
Affected products
1- Range: <=3.6.4
Patches
Vulnerability mechanics
References
6- plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/includes/login-form-setting/login-form-background.phpnvd
- plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/login-form-screen.phpnvd
- plugins.trac.wordpress.org/browser/admin-custom-login/trunk/includes/login-form-setting/login-form-background.phpnvd
- plugins.trac.wordpress.org/browser/admin-custom-login/trunk/login-form-screen.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/0e81b6c1-5af5-4ad4-92db-9dba76399857nvd
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