CVE-2026-1503

MEDIUM EPSS 4.1%
Published Mar 21, 20263mo ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Mar 21, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
4.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-352 Cross-Site Request Forgery (CSRF) Authentication

References 4

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_register_admin.php#L12
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_register_admin.php#L14
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/login-register/tags/1.2.0/login_register_admin.php#L69
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8c82d209-3c69-4d6e-a129-d519f6601540?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.