CVE-2026-57759 Overview
CVE-2026-57759 is an unauthenticated Cross-Site Request Forgery (CSRF) vulnerability affecting the ProfileGrid WordPress plugin in versions 5.9.9.7 and earlier. The plugin provides user profiles, groups, and community features for WordPress sites. According to the Patchstack Vulnerability Report, the flaw can be chained to enable account takeover. Exploitation requires user interaction, such as clicking a crafted link while authenticated.
Critical Impact
A successful attack can lead to full account takeover, including administrator accounts, exposing WordPress sites to complete compromise of confidentiality, integrity, and availability.
Affected Products
- ProfileGrid – User Profiles, Groups and Communities plugin for WordPress
- Plugin versions <= 5.9.9.7
- WordPress sites running the vulnerable plugin with active administrative sessions
Discovery Timeline
- 2026-07-02 - CVE-2026-57759 published to NVD
- 2026-07-02 - Last updated in NVD database
Technical Details for CVE-2026-57759
Vulnerability Analysis
The vulnerability is a Cross-Site Request Forgery flaw categorized under [CWE-352]. The ProfileGrid plugin fails to validate anti-CSRF tokens (nonces) on sensitive state-changing requests. An attacker crafts a malicious webpage or link that triggers an authenticated victim's browser to submit a forged request to the target WordPress site. The site accepts the request as legitimate because it originates from the victim's authenticated session.
Because the flaw is unauthenticated from the attacker's perspective and requires only that a logged-in user interact with attacker-controlled content, the exploitation surface is broad. When the victim holds administrative privileges, the forged request can modify account credentials or profile data to achieve account takeover.
Root Cause
The plugin's request handlers do not enforce WordPress nonce verification via functions such as wp_verify_nonce() or check_admin_referer() on account-modifying endpoints. Without a valid nonce check tied to the user session, the plugin cannot distinguish between requests initiated by the user and those forged by an external origin.
Attack Vector
The attack vector is network-based and requires user interaction. An attacker hosts a page containing a hidden HTML form or JavaScript that auto-submits a POST request to the vulnerable ProfileGrid endpoint. When an authenticated WordPress administrator visits the page, the browser attaches session cookies, and the request executes with the victim's privileges. The result is account modification or takeover without the victim's knowledge.
Refer to the Patchstack Vulnerability Report for further technical detail.
Detection Methods for CVE-2026-57759
Indicators of Compromise
- Unexpected changes to WordPress user account email addresses, passwords, or roles without corresponding admin activity logs.
- HTTP POST requests to ProfileGrid endpoints with Referer or Origin headers pointing to external domains.
- New administrator accounts or role escalations that lack a legitimate audit trail.
- Web server access logs showing profile update requests without prior GET requests to the associated admin page.
Detection Strategies
- Inspect web server and WordPress audit logs for state-changing requests to ProfileGrid endpoints missing valid nonce parameters.
- Correlate Referer and Origin header anomalies with account modification events in the WordPress database.
- Alert on privilege escalation events, particularly changes to the wp_usermetawp_capabilities field.
Monitoring Recommendations
- Enable a WordPress security plugin or Web Application Firewall (WAF) with rules that flag CSRF-style request patterns.
- Forward WordPress and web server logs to a centralized SIEM to detect anomalous account changes in real time.
- Monitor administrator login sources and session activity for deviations from established baselines.
How to Mitigate CVE-2026-57759
Immediate Actions Required
- Update the ProfileGrid plugin to the latest version above 5.9.9.7 as soon as the vendor patch is available.
- Audit all WordPress accounts, especially administrator roles, for unauthorized modifications.
- Force password resets and invalidate active sessions for privileged users.
- Deploy WAF rules to block requests to ProfileGrid endpoints that lack valid Origin or Referer headers.
Patch Information
Consult the Patchstack Vulnerability Report for the current patched version and vendor advisory. Apply the upgrade through the WordPress plugin management interface or WP-CLI.
Workarounds
- Deactivate the ProfileGrid plugin until an updated release is installed.
- Restrict administrative access to trusted IP addresses through server-level access controls.
- Require administrators to use isolated browsers or sessions when managing the site to reduce cross-origin exposure.
- Enable multi-factor authentication (MFA) for all privileged WordPress accounts to reduce the impact of credential changes.
# Update ProfileGrid using WP-CLI once a patched version is released
wp plugin update profilegrid-user-profiles-groups-and-communities
# Or temporarily deactivate the vulnerable plugin
wp plugin deactivate profilegrid-user-profiles-groups-and-communities
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
