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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
Medium4.4EPSS 0.33%
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.4.
Weakness
Affected products
- affected ≤ 3.6.4
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0e81b6c1-5af5-4ad4-92db-9dba76399857?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/login-form-screen.php#L162 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/login-form-screen.php#L162 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/admin-custom-login/trunk/includes/login-form-setting/login-form-background.php#L759 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/admin-custom-login/tags/3.6.3/includes/login-form-setting/login-form-background.php#L759 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3510948%40admin-custom-login&new=3510948%40admin-custom-login (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-2487)Record last updated .