Vulnerability Description
The Two-factor authentication (formerly IP Vault) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1. This is due to missing or incorrect nonce validation on the ipv_save_changes function. This makes it possible for unauthenticated attackers to modify the plugin's firewall and two-factor authentication settings — including the operating mode, request include/exclude rules, authentication slug, and log retention period — potentially disabling protection entirely via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/a
- https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/a
- https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/ip-vault.p
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5a58f809-d051-4841-a1d
FAQ
What is CVE-2026-8903?
CVE-2026-8903 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The Two-factor authentication (formerly IP Vault) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1. This is due to missing or incorrect nonce ...
How severe is CVE-2026-8903?
CVE-2026-8903 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-2026-8903?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.