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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.

PUBLISHED Reserved 2026-05-18 | Published 2026-05-27 | Updated 2026-05-27 | Assigner Wordfence




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Problem types

CWE-352 Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

Any version
affected

Timeline

2026-05-26:Disclosed

Credits

Muhammad Afnaan finder

References

www.wordfence.com/...-d051-4841-a1da-7bc1cf59e1a2?source=cve

plugins.trac.wordpress.org/...nk/includes/admin-settings.php

plugins.trac.wordpress.org/...nk/includes/admin-settings.php

plugins.trac.wordpress.org/...wp-firewall/trunk/ip-vault.php

cve.org (CVE-2026-8903)

nvd.nist.gov (CVE-2026-8903)

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