CVE-2026-15212
Received Received - Intake

Cross-Site Request Forgery in WPO365 Login WordPress Plugin

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Wordfence

Description
The WPO365 | Login plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 43.2. This is due to the Ajax_Service::verify_ajax_request() helper gating its wp_verify_nonce() call behind the boolean option 'enable_nonce_check', which is absent from the default 'wpo365_options' array and therefore evaluates to false via get_global_boolean_var(); as a result, the wp_ajax_wpo365_update_settings handler (Ajax_Service::update_settings) accepts POSTs from cross-origin pages and forwards the attacker-supplied 'settings' payload (base64/JSON) to Options_Service::update_options(), which merges every key/value into wpo365_options without a key allowlist. This makes it possible for unauthenticated attackers to overwrite arbitrary plugin options — including enabling the SCIM REST endpoint (enable_scim), planting an attacker-known scim_secret_token, and setting new_usr_default_role to 'administrator' — via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-24
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
CVE-2026-15212
EUVD
EUVD-2026-48382

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpo365 login to 43.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

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Executive Summary

This vulnerability is a Cross-Site Request Forgery (CSRF) flaw in the WPO365 | Login WordPress plugin up to version 43.2. It allows unauthenticated attackers to trick administrators into submitting malicious requests that overwrite plugin settings. The issue stems from improper nonce verification, which should prevent cross-origin requests but is disabled by default.

Detection Guidance

Check for unauthorized changes in WordPress plugin settings, particularly the WPO365 options. Look for unexpected modifications to the 'enable_scim', 'scim_secret_token', or 'new_usr_default_role' settings. Review server logs for suspicious POST requests to '/wp-admin/admin-ajax.php' with actions like 'wpo365_update_settings'.

Impact Analysis

An attacker could exploit this to gain full control of a WordPress site by enabling the SCIM REST endpoint, setting a known secret token, and assigning the administrator role to a new user. This could lead to complete site compromise, data theft, or further attacks.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating GDPR and HIPAA requirements for data protection and access control. Organizations using this plugin may face compliance violations, legal penalties, and reputational damage if exploited.

Mitigation Strategies

Update the WPO365 | Login plugin to the latest version if available. Disable the plugin if not in use. Review and reset all plugin settings to default. Implement strict access controls for WordPress admin areas. Monitor for unauthorized administrator role assignments.

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