Vulnerability Description
The login_register plugin for WordPress is vulnerable to Cross-Site Request Forgery to Stored Cross-Site Scripting in all versions up to, and including, 1.2.0. This is due to missing nonce validation on the settings page and insufficient input sanitization and output escaping on the 'login_register_login_post' parameter. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page via a forged request granted they can trick an administrator into performing an action such as clicking on a link.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_regis
- https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_regis
- https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_regis
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8c82d209-3c69-4d6e-a12
FAQ
What is CVE-2026-1503?
CVE-2026-1503 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The login_register plugin for WordPress is vulnerable to Cross-Site Request Forgery to Stored Cross-Site Scripting in all versions up to, and including, 1.2.0. This is due to missing nonce validation ...
How severe is CVE-2026-1503?
CVE-2026-1503 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1503?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.