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.
History

Mon, 23 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 23 Mar 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Frankkoenen
Frankkoenen plugin Name: Login Register
Wordpress
Wordpress wordpress
Vendors & Products Frankkoenen
Frankkoenen plugin Name: Login Register
Wordpress
Wordpress wordpress

Sat, 21 Mar 2026 05:30:00 +0000

Type Values Removed Values Added
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.
Title login_register <= 1.2.0 - Cross-Site Request Forgery to Stored Cross-Site Scripting
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-03-21T03:26:54.649Z

Updated: 2026-03-23T15:54:20.991Z

Reserved: 2026-01-27T19:28:28.952Z

Link: CVE-2026-1503

cve-icon Vulnrichment

Updated: 2026-03-23T15:07:37.731Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-21T04:16:53.750

Modified: 2026-03-23T14:32:02.800

Link: CVE-2026-1503

cve-icon Redhat

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