CVE-2026-2487
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.
Does this matter?
Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Source
- security@wordfence.com
References
- https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/includes/login-form-setting/login-form-background.php#L759
- https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/login-form-screen.php#L162
- https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/includes/login-form-setting/login-form-background.php#L759
- https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/login-form-screen.php#L162
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3510948%40admin-custom-login&new=3510948%40admin-custom-login
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0e81b6c1-5af5-4ad4-92db-9dba76399857?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.