CVE-2025-3793 Overview
CVE-2025-3793 affects the BuddyPress Force Password Change plugin for WordPress. The plugin fails to validate a user's identity before updating their password through the bp_force_password_ajax function. All versions up to and including 0.1 are affected.
Authenticated attackers with subscriber-level access or higher can change arbitrary user passwords, including administrator accounts. Successful exploitation requires certain prerequisites but enables account takeover across the WordPress installation. The weakness maps to CWE-620: Unverified Password Change.
Critical Impact
Authenticated attackers with low-privilege accounts can reset administrator passwords through the vulnerable AJAX handler and take over the affected WordPress site.
Affected Products
- BuddyPress Force Password Change plugin for WordPress (all versions ≤ 0.1)
- WordPress installations running the vulnerable plugin
- BuddyPress-enabled communities using this password enforcement extension
Discovery Timeline
- 2025-04-24 - CVE-2025-3793 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-3793
Vulnerability Analysis
The vulnerability resides in the bp_force_password_ajax function of the BuddyPress Force Password Change plugin. The handler processes AJAX requests to update a user's password but does not verify that the requester owns the account being modified.
An authenticated user at the subscriber level can submit a crafted AJAX request specifying another user's identifier. The plugin accepts the request and updates the target account's password without validating ownership. Because WordPress subscriber accounts are commonly available on sites that permit self-registration, the barrier to exploitation is low once registration is enabled.
The issue is classified as CWE-620: Unverified Password Change. This class of flaw occurs when password reset functionality omits the current-password check or session-owner check that binds the operation to the authenticated principal.
Root Cause
The root cause is missing authorization logic in the AJAX callback. The function neither confirms that the target user identifier matches the current session's user ID nor requires the existing password. The nonce check alone, if present, only proves the request originated from an authenticated context, not that the caller owns the target account.
Attack Vector
Exploitation requires network access to the WordPress site and a valid authenticated session at subscriber level or above. The attacker submits an AJAX request to the vulnerable endpoint with a manipulated user identifier pointing at an administrator account. Upon success, the attacker logs in with the new credentials. See the plugin source at line 93 and the Wordfence advisory for technical detail.
No verified public exploit code is available. The vulnerability is described in prose without synthetic proof-of-concept code.
Detection Methods for CVE-2025-3793
Indicators of Compromise
- Unexpected password change events for administrator or editor accounts in the WordPress user log
- AJAX POST requests to admin-ajax.php with the bp_force_password_ajax action originating from subscriber-level sessions
- New administrator sessions from IP addresses that previously authenticated only as subscribers
- Modifications to wp_users.user_pass hashes without corresponding administrator-initiated reset workflows
Detection Strategies
- Audit web server logs for POST requests to wp-admin/admin-ajax.php where the action parameter equals bp_force_password_ajax and the user_id parameter does not match the session owner
- Correlate WordPress password change events with the acting user's role to flag subscriber-initiated changes to higher-privileged accounts
- Enable a security plugin or WAF rule that inspects AJAX parameters for the vulnerable action name
Monitoring Recommendations
- Forward WordPress authentication and user-modification events to a centralized log platform for correlation
- Alert on any administrator password change that occurred outside an active administrator session
- Track newly registered subscriber accounts followed by AJAX activity targeting user management endpoints
How to Mitigate CVE-2025-3793
Immediate Actions Required
- Deactivate and remove the BuddyPress Force Password Change plugin until a patched release is confirmed
- Force a password reset for all administrator, editor, and author accounts on affected sites
- Review the WordPress user table for unauthorized role changes or unexpected password hash modifications
- Disable open user registration temporarily if the plugin cannot be removed immediately
Patch Information
No vendor-supplied patched version is listed in the enriched CVE data at the time of publication. All versions up to and including 0.1 are affected. Monitor the WordPress plugin repository and the Wordfence advisory for an updated release.
Workarounds
- Remove the plugin from the wp-content/plugins/ directory to eliminate the vulnerable AJAX handler
- Deploy a web application firewall rule that blocks POST requests to admin-ajax.php with action=bp_force_password_ajax when the target user_id differs from the session owner
- Restrict subscriber-level registration through membership approval workflows to reduce the pool of authenticated attackers
# Configuration example: WordPress CLI removal of the vulnerable plugin
wp plugin deactivate buddy-press-force-password-change
wp plugin delete buddy-press-force-password-change
wp user list --role=administrator --field=ID | xargs -I {} wp user reset-password {}
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
