CVE-2025-31814 Overview
CVE-2025-31814 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] affecting the OwnerRez WordPress plugin. The flaw exists in the OwnerRez API integration and impacts all versions up to and including 1.2.0. An attacker can craft a malicious web page that triggers unauthorized state-changing actions when an authenticated site administrator visits it. Successful exploitation requires user interaction, and the impact is limited to integrity of plugin-managed data.
Critical Impact
Attackers can force authenticated OwnerRez plugin users to perform unintended actions on their WordPress site, resulting in unauthorized changes to plugin configuration or integration data.
Affected Products
- OwnerRez WordPress plugin versions up to and including 1.2.0
- WordPress sites integrating the OwnerRez API through the affected plugin
- Installations that have not applied post-1.2.0 patches from the vendor
Discovery Timeline
- 2025-04-01 - CVE CVE-2025-31814 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-31814
Vulnerability Analysis
The OwnerRez WordPress plugin exposes API-connected functionality without adequate anti-CSRF protections. The plugin fails to verify that state-changing HTTP requests originate from legitimate user actions within the WordPress admin interface. An attacker can host a page containing a forged form or automated request targeting the plugin's endpoints. When an authenticated administrator visits the attacker-controlled page, the browser submits the request with valid session cookies, and the plugin processes it as if it were an intentional administrative action.
The vulnerability affects integrity but not confidentiality or availability, based on the recorded CVSS metrics. Exploitation is network-reachable and requires no privileges, but the victim must be authenticated and interact with the attacker's content. The EPSS score of 0.197% reflects a low observed probability of exploitation in the near term.
Root Cause
The root cause is the absence or improper validation of anti-CSRF tokens on state-changing requests handled by the OwnerRez plugin. WordPress provides a nonce mechanism through wp_nonce_field() and check_admin_referer(), but the affected code paths do not consistently enforce nonce verification before processing requests to the OwnerRez API integration handlers.
Attack Vector
Exploitation follows a standard CSRF pattern. The attacker lures an authenticated WordPress administrator, who has the OwnerRez plugin installed, to visit a malicious page. The page contains hidden HTML forms or JavaScript that issues cross-origin requests to the target WordPress site. Because the victim's browser automatically attaches WordPress session cookies, the plugin executes the request under the administrator's authority. The vulnerability manifests when the plugin's request handlers process incoming parameters without verifying a valid WordPress nonce or checking the request origin. See the Patchstack Vulnerability Report for the technical advisory.
Detection Methods for CVE-2025-31814
Indicators of Compromise
- Unexpected changes to OwnerRez plugin configuration or API settings that administrators did not initiate
- WordPress access logs showing POST requests to OwnerRez plugin endpoints with Referer headers pointing to external, untrusted domains
- Administrator sessions producing plugin state changes shortly after visiting unfamiliar external sites
Detection Strategies
- Review WordPress audit logs for OwnerRez plugin actions correlated with cross-origin Referer values or missing nonce parameters
- Deploy a web application firewall rule that flags requests to OwnerRez plugin handlers lacking a valid _wpnonce parameter
- Monitor browser telemetry and endpoint activity for administrator navigation to suspicious URLs immediately preceding plugin state changes
Monitoring Recommendations
- Enable verbose logging on WordPress administrative actions and forward logs to a centralized SIEM for correlation
- Alert on plugin configuration modifications occurring outside expected maintenance windows
- Track OwnerRez plugin version inventory across managed WordPress sites to identify hosts still running 1.2.0 or earlier
How to Mitigate CVE-2025-31814
Immediate Actions Required
- Update the OwnerRez WordPress plugin to a version later than 1.2.0 as soon as a fixed release is available from the vendor
- Restrict WordPress administrator accounts from browsing untrusted external sites during authenticated sessions
- Enforce strong session management by logging out administrator sessions after use and using separate browsers or profiles for admin tasks
Patch Information
Refer to the Patchstack Vulnerability Report for the latest patch guidance. The advisory covers OwnerRez plugin versions through 1.2.0. Site operators should track vendor releases and apply updates immediately once published.
Workarounds
- Temporarily deactivate the OwnerRez plugin on WordPress sites where administrators cannot upgrade immediately
- Configure a web application firewall to require a valid _wpnonce parameter on all requests to OwnerRez plugin endpoints
- Enforce SameSite=Strict or SameSite=Lax on WordPress session cookies to reduce cross-origin cookie transmission
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
