CVE-2026-32300 Overview
Connect-CMS is an open-source content management system developed by opensource-workshop. A critical improper authorization vulnerability has been identified in the My Page profile update feature that allows authenticated attackers to modify arbitrary user information. This authorization bypass affects the profile update functionality, enabling unauthorized modification of other users' account data through manipulated requests.
Critical Impact
Authenticated attackers can exploit this improper authorization flaw to modify arbitrary user information, potentially leading to account takeover, privilege escalation, and data integrity compromise within Connect-CMS installations.
Affected Products
- Connect-CMS version 1.x series up to and including 1.41.0
- Connect-CMS version 2.x series up to and including 2.41.0
- opensource-workshop connect-cms
Discovery Timeline
- 2026-03-23 - CVE CVE-2026-32300 published to NVD
- 2026-03-24 - Last updated in NVD database
Technical Details for CVE-2026-32300
Vulnerability Analysis
This vulnerability stems from an improper authorization implementation (CWE-285) in the My Page profile update feature of Connect-CMS. The flaw exists in how the application handles user profile update requests, specifically in the ProfileMypage.php plugin and associated view template. The vulnerable code accepted a user ID parameter in the URL path, allowing attackers to specify arbitrary user IDs when submitting profile update requests.
The core issue is that the application failed to properly verify that the authenticated user was authorized to modify only their own profile data. By manipulating the user ID parameter in the profile update URL, an attacker with valid credentials could submit modification requests targeting other users' accounts.
Root Cause
The root cause lies in the insecure design of the profile update endpoint. The vulnerable implementation exposed the user ID in the URL path (/mypage/profile/update/{{$id}}), relying on client-supplied data to determine which user's profile to update rather than using the server-side authenticated session. Additionally, the code imported and utilized the App\User model in ways that permitted direct manipulation of arbitrary user records without proper authorization checks.
Attack Vector
The attack vector is network-based and requires low-privilege authentication. An attacker must first obtain valid credentials for any Connect-CMS account. Once authenticated, the attacker can exploit the vulnerability by:
- Accessing the My Page profile update feature
- Intercepting or crafting a POST request to the profile update endpoint
- Modifying the user ID parameter in the URL to target a different user
- Submitting the request to modify the targeted user's information
The following patch demonstrates the security fix applied by the vendor:
// View template fix - resources/views/plugins/mypage/profile/edit_form.blade.php
// BEFORE (vulnerable):
<form action="{{url('/')}}/mypage/profile/update/{{$id}}" class="form-horizontal" method="POST" name="form_profile">
// AFTER (patched):
<form action="{{url('/')}}/mypage/profile/update" class="form-horizontal" method="POST" name="form_profile">
Source: GitHub Commit
The patch removes the user-controllable ID parameter from the URL path, ensuring profile updates are tied to the authenticated user's session rather than a client-supplied parameter.
// Controller fix - app/Plugins/Mypage/ProfileMypage/ProfileMypage.php
// Removed import allowing arbitrary user manipulation:
-use App\User;
// The fix ensures the authenticated user context is used via:
use Illuminate\Support\Facades\Auth;
Source: GitHub Commit
Detection Methods for CVE-2026-32300
Indicators of Compromise
- Unexpected modifications to user profile data, particularly for administrator or high-privilege accounts
- Web server logs showing profile update requests with mismatched user IDs (requests to /mypage/profile/update/{id} where the ID doesn't match the authenticated session)
- Multiple profile update attempts from a single session targeting different user IDs
- Audit logs indicating profile changes that users did not initiate
Detection Strategies
- Implement web application firewall (WAF) rules to detect and block profile update requests containing user ID parameters that don't match the authenticated session
- Enable detailed access logging on Connect-CMS installations to track all profile modification requests
- Configure intrusion detection systems to alert on unusual patterns of profile update activity from single sessions
- Review application logs for POST requests to /mypage/profile/update/* endpoints with varying user ID values
Monitoring Recommendations
- Audit user profile modification events and correlate with authenticated session data
- Monitor for sudden changes to user email addresses, passwords, or privilege levels
- Establish baseline metrics for profile update frequency and alert on anomalies
- Implement real-time alerting for modifications to administrator accounts
How to Mitigate CVE-2026-32300
Immediate Actions Required
- Upgrade Connect-CMS 1.x installations to version 1.41.1 or later immediately
- Upgrade Connect-CMS 2.x installations to version 2.41.1 or later immediately
- Review user profile data for any unauthorized modifications, particularly for administrator accounts
- Consider resetting passwords for all users if compromise is suspected
- Audit access logs for evidence of exploitation attempts
Patch Information
Patches are available from opensource-workshop. Users should upgrade to the fixed versions:
The security fix is documented in the GitHub Security Advisory GHSA-qr6x-wvxr-8hm9 and implemented in commit 7c9951738c62a1d51b91e9956d1eb756c5d52cce.
Workarounds
- If immediate patching is not possible, consider restricting access to the My Page profile feature until the update can be applied
- Implement additional authentication controls or session validation at the web server or reverse proxy level
- Limit user registration and account creation to reduce the attack surface
- Monitor profile update endpoints with enhanced logging until patching is complete
# Example: Verify Connect-CMS version and apply update
# Check current version in your Connect-CMS installation
cat composer.json | grep version
# Update to patched version using Composer
composer update opensource-workshop/connect-cms
# Verify the update was successful
php artisan --version
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
