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CVE-2026-2487

Admin Custom Login <= 3.6.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'Message Above Login Form' Setting

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.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
CVE-2017-20098

Admin Custom Login Plugin Persistent cross site scripting

A vulnerability was found in Admin Custom Login Plugin 2.4.5.2. It has been classified as problematic. Affected is an unknown function. The manipulation leads to basic cross site scripting (Persistent). It is possible to launch the attack remotely.

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Vendors
CVE-2021-34628

Admin Custom Login <= 3.2.7 - Cross-Site Request Forgery to Stored Cross-Site Scripting

The Admin Custom Login WordPress plugin is vulnerable to Cross-Site Request Forgery due to the loginbgSave action found in the ~/includes/Login-form-setting/Login-form-background.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.2.7.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors