CVE-2025-31425: WP Lead Capturing Pages Auth Bypass Flaw

CVE-2025-31425 Overview

CVE-2025-31425 is a Missing Authorization vulnerability [CWE-862] in the kamleshyadav WP Lead Capturing Pages WordPress plugin. The flaw affects all versions up to and including 2.6 of the leadcapture plugin. Unauthenticated attackers can exploit incorrectly configured access control checks to trigger arbitrary content deletion on affected WordPress sites. The vulnerability requires no privileges and no user interaction, and is exploitable remotely over the network. Successful exploitation impacts site availability by enabling destruction of plugin-managed content.

Critical Impact
Unauthenticated remote attackers can delete arbitrary content on WordPress sites running WP Lead Capturing Pages plugin versions through 2.6.

Affected Products

kamleshyadav WP Lead Capturing Pages (leadcapture) plugin for WordPress
All versions from n/a through 2.6
WordPress sites with the vulnerable plugin installed and activated

Discovery Timeline

2025-08-14 - CVE-2025-31425 published to the National Vulnerability Database (NVD)
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-31425

Vulnerability Analysis

The vulnerability stems from a missing authorization check in the WP Lead Capturing Pages plugin. Plugin endpoints responsible for content management do not verify whether the requesting user holds the required capability or role. As a result, requests from unauthenticated users reach privileged code paths that should be restricted to administrators. The flaw is categorized under [CWE-862] Missing Authorization, a recurring weakness pattern in WordPress plugins that expose AJAX or admin-post handlers without capability checks.

Root Cause

The plugin registers handlers that perform destructive operations on stored content without invoking WordPress capability functions such as current_user_can() or verifying nonces via check_ajax_referer(). This absence of access control allows any visitor to invoke the handler directly. The Patchstack advisory classifies the resulting behavior as arbitrary content deletion, indicating the affected endpoint accepts attacker-supplied identifiers and removes matching records.

Attack Vector

An attacker sends a crafted HTTP request to the vulnerable plugin endpoint on a target WordPress site. The request requires no authentication, no user interaction, and no special preconditions beyond the plugin being active. By iterating identifiers or specifying targeted records, the attacker can delete content managed by the plugin. The result is loss of integrity for stored lead capture pages or related data, with downstream availability impact on site functionality.

No verified proof-of-concept code is publicly available. Technical details of the deletion endpoint are documented in the Patchstack WP Lead Capture Vulnerability advisory.

Detection Methods for CVE-2025-31425

Indicators of Compromise

Unexpected deletion of lead capture pages, forms, or related plugin records in the WordPress database.
HTTP POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints originating from unauthenticated sessions.
Web server access logs showing repeated requests to leadcapture plugin actions from a single external IP address.

Detection Strategies

Inventory WordPress installations and identify sites with the WP Lead Capturing Pages plugin at version 2.6 or earlier.
Review web server and WordPress audit logs for AJAX requests targeting leadcapture action parameters without an authenticated session cookie.
Compare current plugin content against backups to identify unauthorized deletions consistent with this vulnerability.

Monitoring Recommendations

Enable WordPress activity logging to capture content deletion events with timestamps and source IP addresses.
Alert on bursts of admin-ajax.php requests referencing the vulnerable plugin from unauthenticated clients.
Monitor outbound responses for HTTP 200 status codes on plugin delete actions where the request lacks valid authentication.

How to Mitigate CVE-2025-31425

Immediate Actions Required

Deactivate the WP Lead Capturing Pages plugin until a patched version higher than 2.6 is confirmed available and installed.
Restrict access to wp-admin/admin-ajax.php plugin actions at the web application firewall layer for unauthenticated sources.
Back up the WordPress database before remediation to preserve recoverable state in case of prior exploitation.

Patch Information

At the time of NVD publication, the advisory indicates the vulnerability affects versions through 2.6 with no fixed version explicitly listed in the supplied data. Site administrators should consult the Patchstack advisory and the WordPress plugin repository for the latest fixed release and update immediately when available.

Workarounds

Remove the plugin entirely if business operations do not require its functionality.
Apply a virtual patch through a WordPress security plugin or WAF rule blocking unauthenticated requests to leadcapture AJAX actions.
Restrict administrative endpoints by IP allowlist where feasible to reduce exposure to unauthenticated attackers.

bash

# Example nginx rule to block unauthenticated access to vulnerable plugin actions
location = /wp-admin/admin-ajax.php {
    if ($arg_action ~* "^leadcapture_") {
        # Require a valid WordPress logged-in cookie
        if ($http_cookie !~* "wordpress_logged_in_") {
            return 403;
        }
    }
}