CVE-2026-40726 ThemeGrill CVE debrief

Who should care

Administrators and security teams using the User Registration Stripe plugin versions <= 1.3.14 should be aware of this vulnerability. Additionally, WordPress users and security professionals monitoring plugin vulnerabilities should take note.

Technical summary

CVE-2026-40726 is a HIGH severity vulnerability (CVSS Score: 8.2, CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N) in the User Registration Stripe plugin. The vulnerability is classified under CWE-862, indicating a broken access control issue. This allows unauthenticated attackers to potentially access sensitive user registration information.

Defensive priority

HIGH

Recommended defensive actions

• Update the User Registration Stripe plugin to a version greater than 1.3.14.
• Review and restrict access to user registration information.
• Implement additional security measures to monitor and detect potential attacks.
• Consider using a Web Application Firewall (WAF) to filter traffic.
• Regularly update and patch all plugins and software.
• Monitor for suspicious activity and implement incident response plans.

Evidence notes

The vulnerability information is based on data from the National Vulnerability Database (NVD) and Patchstack. The CVE record and NVD details provide further information on this vulnerability. [ref-4] provides mitigation details from Patchstack.

Official resources