CVE-2025-67919: Woffice Core Auth Bypass Vulnerability

CVE-2025-67919 Overview

CVE-2025-67919 is an Authorization Bypass Through User-Controlled Key vulnerability (CWE-639) affecting WofficeIO Woffice Core, a popular WordPress plugin for creating intranet and extranet sites. This Insecure Direct Object Reference (IDOR) vulnerability allows authenticated attackers with low privileges to exploit incorrectly configured access control security levels, potentially gaining unauthorized access to sensitive resources belonging to other users.

Critical Impact
Authenticated attackers can bypass authorization controls to access and modify sensitive data belonging to other users, leading to unauthorized information disclosure and data manipulation.

Affected Products

WofficeIO Woffice Core plugin versions up to and including 5.4.30
WordPress installations using vulnerable Woffice Core versions
Organizations using Woffice for intranet/extranet portals

Discovery Timeline

2026-01-08 - CVE CVE-2025-67919 published to NVD
2026-01-08 - Last updated in NVD database

Technical Details for CVE-2025-67919

Vulnerability Analysis

This vulnerability is classified as an Insecure Direct Object Reference (IDOR) issue stemming from CWE-639: Authorization Bypass Through User-Controlled Key. The Woffice Core plugin fails to properly validate user authorization when accessing resources, allowing attackers to manipulate user-controlled parameters (such as object identifiers) to access data or functionality belonging to other users.

The attack requires network access and low-level authenticated privileges to exploit. The vulnerability can be exploited without any user interaction, making it particularly dangerous in multi-user WordPress environments. Successful exploitation results in significant confidentiality and integrity impacts, as attackers can both read and modify unauthorized data.

Root Cause

The root cause lies in the plugin's failure to implement proper authorization checks when processing user-supplied keys or identifiers. Instead of validating that the authenticated user has permission to access the requested resource, the application directly uses user-controlled input to retrieve or modify objects without adequate access control verification. This architectural flaw allows any authenticated user to potentially access resources belonging to other users by simply manipulating request parameters.

Attack Vector

The attack vector is network-based, requiring the attacker to have authenticated access to a WordPress site running the vulnerable Woffice Core plugin. An attacker can exploit this vulnerability by:

Authenticating to the WordPress site with any valid user account (even low-privileged)
Identifying API endpoints or functionality that use user-controlled identifiers
Manipulating object identifiers (IDs, keys, or references) in HTTP requests
Accessing or modifying resources belonging to other users without proper authorization

The vulnerability exploits the trust placed in user-supplied identifiers without server-side validation of access permissions. For detailed technical information, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2025-67919

Indicators of Compromise

Unusual access patterns to user-specific resources from a single authenticated session
HTTP requests containing sequential or enumerated object identifiers
Access to resources by users who should not have permissions for those objects
Log entries showing successful retrieval of data associated with different user accounts

Detection Strategies

Monitor web server access logs for patterns indicating parameter tampering with object IDs
Implement alerting for authenticated users accessing resources outside their normal scope
Deploy Web Application Firewall (WAF) rules to detect IDOR attack patterns
Review WordPress audit logs for unauthorized access to Woffice Core functionality

Monitoring Recommendations

Enable detailed logging for the Woffice Core plugin and related API endpoints
Configure security monitoring to alert on access control violations
Implement user behavior analytics to detect anomalous resource access patterns
Regularly audit user access logs for signs of horizontal privilege escalation

How to Mitigate CVE-2025-67919

Immediate Actions Required

Update Woffice Core plugin to a version newer than 5.4.30 when a patch becomes available
Review user access logs for signs of exploitation
Implement additional access control layers through WordPress security plugins
Consider temporarily restricting access to the affected functionality if feasible

Patch Information

Organizations should monitor WofficeIO for security updates addressing this vulnerability. The vendor advisory and patch information can be found at the Patchstack WordPress Vulnerability Report. Until a patch is available, implement the workarounds below to reduce risk.

Workarounds

Deploy a Web Application Firewall (WAF) with rules to detect and block IDOR attack patterns
Restrict plugin functionality to trusted administrative users where possible
Implement additional server-side access control validation at the web server level
Monitor and log all access to Woffice Core functionality for forensic analysis

bash

# WordPress security hardening - restrict access to sensitive endpoints
# Add to .htaccess file in WordPress root

# Restrict access to Woffice Core sensitive endpoints
<IfModule mod_rewrite.c>
RewriteEngine On
# Log all requests to Woffice Core for monitoring
RewriteCond %{REQUEST_URI} woffice-core [NC]
RewriteRule .* - [E=WOFFICE_REQUEST:1]
</IfModule>

# Enable additional logging for security monitoring
# Add to wp-config.php
# define('WP_DEBUG_LOG', true);
# define('WP_DEBUG_DISPLAY', false);