CVE-2025-10746: WordPress Dynamics 365 Auth Bypass Flaw

CVE-2025-10746 Overview

CVE-2025-10746 affects the Integrate Dynamics 365 CRM plugin for WordPress in all versions up to and including 1.0.9. The plugin registers functions on the init hook without capability checks or nonce verification. Unauthenticated attackers can craft requests that deactivate the plugin, modify OAuth configuration, and trigger test connections that expose sensitive data. The flaw is classified under CWE-306: Missing Authentication for Critical Function and is network exploitable without user interaction.

Critical Impact
Unauthenticated attackers can tamper with Dynamics 365 CRM OAuth settings and exfiltrate sensitive integration data from affected WordPress sites.

Affected Products

Integrate Dynamics 365 CRM plugin for WordPress, versions up to and including 1.0.9
WordPress sites with the plugin activated and network-accessible
Dynamics 365 CRM OAuth configurations managed by the plugin

Discovery Timeline

2025-10-04 - CVE-2025-10746 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-10746

Vulnerability Analysis

The plugin attaches administrative handlers to the WordPress init action without gating them behind authentication or authorization. The init hook fires for every request, including unauthenticated ones. Any visitor supplying the expected request parameters reaches privileged code paths intended for administrators.

Three distinct actions are reachable: plugin deactivation, OAuth configuration changes, and connection tests. The connection test action executes an outbound request to Dynamics 365 with configured credentials and returns response content that can include tokens, endpoint URLs, and CRM data. Because the vulnerability requires no session or CSRF token, exploitation scales through simple HTTP requests.

Root Cause

The vulnerable handlers in adminObserver.php and integrate-dynamics-365-crm.php omit calls to current_user_can() and wp_verify_nonce(). WordPress does not enforce authorization on hook callbacks automatically. Developers must apply capability checks inside each callback, which this plugin does not do for its administrative actions. See the WordPress Plugin File reference for the affected code path.

Attack Vector

Exploitation is remote and unauthenticated. An attacker sends an HTTP GET or POST request to the WordPress front-end with parameters recognized by the vulnerable init callbacks. No form submission from an administrator is required, distinguishing this from CSRF. The Wordfence Vulnerability Report documents the parameter patterns used to reach each action.

No verified public exploit code is available. The vulnerability mechanism is described in prose based on vendor references; consult the linked plugin source files for the vulnerable functions.

Detection Methods for CVE-2025-10746

Indicators of Compromise

Unexpected deactivation of the Integrate Dynamics 365 CRM plugin recorded in WordPress activity logs
Outbound requests from the WordPress host to Dynamics 365 endpoints not tied to administrator sessions
Modifications to OAuth client ID, client secret, or tenant configuration without an authenticated admin session
Requests from unauthenticated clients containing plugin-specific parameters targeting the init hook

Detection Strategies

Inspect web server access logs for requests containing plugin parameter names from unauthenticated source IPs
Correlate WordPress option changes with authenticated admin sessions and flag mismatches
Alert on plugin activation and deactivation events that lack a corresponding admin login

Monitoring Recommendations

Enable WordPress audit logging for option changes affecting the plugin's OAuth settings
Forward WordPress and web server logs to a centralized analytics platform for retention and query
Monitor outbound traffic from web servers to *.dynamics.com and flag connections outside expected schedules

How to Mitigate CVE-2025-10746

Immediate Actions Required

Update the Integrate Dynamics 365 CRM plugin to a version newer than 1.0.9 once the vendor publishes a fix
Rotate OAuth client secrets and any Dynamics 365 credentials configured in the plugin
Review WordPress wp_options for unauthorized changes to plugin configuration and restore known-good values
Audit recent outbound requests to Dynamics 365 endpoints for signs of data exposure

Patch Information

At the time of NVD publication, no fixed version beyond 1.0.9 is referenced in the advisory. Track the Wordfence Vulnerability Report and the plugin repository for release updates.

Workarounds

Deactivate and remove the Integrate Dynamics 365 CRM plugin until a patched version is released
Restrict access to /wp-admin/ and the WordPress front-end using an IP allowlist at the web server or WAF layer
Deploy a web application firewall rule that blocks unauthenticated requests containing the plugin's action parameters
Enforce least privilege on the Dynamics 365 OAuth application to reduce the impact of exposed credentials

bash

# Example: block unauthenticated access to plugin parameters at the Nginx layer
location / {
    if ($arg_action ~* "^(d365_deactivate|d365_oauth|d365_test_connection)$") {
        return 403;
    }
}