CVE-2025-48155: Residential Address Detection Auth Bypass

CVE-2025-48155 Overview

CVE-2025-48155 is a missing authorization vulnerability in the enituretechnology Residential Address Detection plugin for WordPress. The flaw affects all versions up to and including 2.5.9. The plugin exposes functionality that is not properly constrained by access control lists (ACLs), allowing unauthenticated attackers to access features intended for privileged users. The weakness is tracked as [CWE-862] Missing Authorization. Successful exploitation impacts integrity of the affected site, though confidentiality and availability remain unaffected according to the published CVSS vector.

Critical Impact
Unauthenticated network attackers can invoke plugin functionality that should be restricted by ACLs, leading to unauthorized state changes on affected WordPress sites.

Affected Products

enituretechnology Residential Address Detection plugin for WordPress
Versions from n/a through <= 2.5.9
WordPress sites with the residential-address-detection plugin installed and activated

Discovery Timeline

2025-07-16 - CVE-2025-48155 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-48155

Vulnerability Analysis

The plugin exposes one or more request handlers that perform sensitive operations without verifying the caller's role or capabilities. In WordPress plugin architecture, authorization is typically enforced by calling current_user_can(), verifying a nonce with check_ajax_referer(), or restricting AJAX and REST endpoints to authenticated contexts. When these checks are absent, requests reach privileged code paths regardless of the requester's identity.

The CVSS vector indicates a network-reachable endpoint requiring no privileges and no user interaction. The impact is limited to integrity, meaning attackers can alter plugin state or trigger backend actions without reading confidential data or causing outage. The EPSS score of 0.265% suggests limited observed exploitation activity to date.

Root Cause

The root cause is missing authorization on plugin endpoints exposed through WordPress admin-ajax, REST API, or similar hook registrations. The plugin registers callbacks that execute business logic without validating the requester's capability set. This corresponds to [CWE-862] Missing Authorization, where the software fails to perform an authorization check when an actor attempts to access a resource or perform an action.

Attack Vector

An unauthenticated attacker sends crafted HTTP requests to the exposed plugin endpoints on a vulnerable WordPress site. Because no capability check is enforced, the plugin processes the request as if it originated from an authorized user. Refer to the Patchstack Vulnerability Report for endpoint-level details.

No verified public proof-of-concept code is available. The vulnerability mechanism is described in prose only.

Detection Methods for CVE-2025-48155

Indicators of Compromise

Unexpected POST requests to /wp-admin/admin-ajax.php referencing residential-address-detection actions from unauthenticated sessions
Requests to plugin REST routes registered by residential-address-detection originating from external IPs without valid authentication cookies
Unexplained modifications to plugin settings or address-detection configuration in the WordPress database

Detection Strategies

Inspect WordPress access logs for AJAX or REST calls tied to the plugin from clients lacking wordpress_logged_in_* cookies
Enable a Web Application Firewall (WAF) rule that requires authentication for plugin-specific action names
Compare plugin configuration state against a known-good baseline to identify unauthorized changes

Monitoring Recommendations

Monitor HTTP 200 responses to plugin endpoints from anonymous sessions, which indicate the endpoint executed successfully without authentication
Alert on spikes of requests targeting admin-ajax.php with action parameters registered by the plugin
Track plugin version inventory across WordPress fleets and flag any host still running version 2.5.9 or earlier

How to Mitigate CVE-2025-48155

Immediate Actions Required

Update the Residential Address Detection plugin to a version later than 2.5.9 as soon as a fixed release is available from the vendor
If no patched version is available, deactivate and remove the plugin until a fix is published
Audit WordPress sites for the presence of the residential-address-detection plugin and prioritize remediation on internet-facing sites

Patch Information

The Patchstack advisory identifies the affected version range as n/a through <= 2.5.9. Administrators should consult the plugin repository for the latest release and apply it via the WordPress plugin management interface.

Workarounds

Restrict access to /wp-admin/admin-ajax.php and plugin REST routes at the WAF layer, allowing only authenticated requests
Disable the plugin on any site where the residential address detection feature is not actively used
Implement capability checks or authentication requirements via a custom WordPress mu-plugin that filters requests to the vulnerable action names

bash

# Example: disable the plugin from the WordPress CLI until a fix is applied
wp plugin deactivate residential-address-detection
wp plugin delete residential-address-detection