CVE-2025-10389: Crmeb Auth Bypass Vulnerability

CVE-2025-10389 Overview

CVE-2025-10389 is an improper authorization vulnerability [CWE-266] in CRMEB versions up to 5.6.1. The flaw resides in the Save function of app/services/system/admin/SystemAdminServices.php within the Administrator Password Handler component. An authenticated remote attacker can manipulate the ID argument to perform actions outside their authorized scope. Public exploit details have been released, and the vendor did not respond to early disclosure attempts.

Critical Impact
Authenticated attackers can manipulate administrator account records by tampering with the ID parameter, potentially altering credentials belonging to other administrators in the CRMEB e-commerce platform.

Affected Products

CRMEB versions up to and including 5.6.1
Component: Administrator Password Handler (app/services/system/admin/SystemAdminServices.php)
Function: Save

Discovery Timeline

2025-09-14 - CVE-2025-10389 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-10389

Vulnerability Analysis

The vulnerability stems from improper authorization handling in the Save function inside SystemAdminServices.php. The function processes administrator password update requests but fails to verify whether the caller is authorized to operate on the supplied ID value. By substituting another administrator's identifier, a low-privileged user can act on records they do not own.

This weakness falls under [CWE-266] (Incorrect Privilege Assignment). The CRMEB platform is a widely deployed PHP-based e-commerce and customer relationship management system, making administrator account manipulation a meaningful concern for affected deployments.

The attack requires network access and a valid low-privilege session. No user interaction is needed. Public disclosure includes references in VulDB entries 323824 and 644543, along with a GitHub Markdown writeup.

Root Cause

The Save function does not enforce object-level authorization checks before applying changes to the administrator record identified by the ID parameter. The application trusts the client-supplied identifier without validating ownership or permission boundaries between administrator accounts.

Attack Vector

An attacker with low-privilege authenticated access submits a request to the administrator save endpoint while specifying a different administrator's ID. The backend processes the change without checking whether the session holder is permitted to modify that target. The vulnerability is remotely exploitable over the network.

No verified proof-of-concept code is published in machine-readable form. See the VulDB entry 323824 and the referenced GitHub writeup for technical reproduction details.

Detection Methods for CVE-2025-10389

Indicators of Compromise

Unexpected modifications to administrator accounts in the CRMEB database, particularly password hash changes outside of normal admin activity.
HTTP POST requests to the admin save endpoint where the supplied ID parameter does not match the authenticated user's own administrator record.
Authentication anomalies such as successful logins by administrator accounts that recently had unexplained password resets.

Detection Strategies

Audit web server access logs for requests targeting SystemAdminServices save endpoints with varying ID values from the same session.
Correlate database write events on administrator tables with the originating session's authorized scope.
Deploy application-layer monitoring rules that flag administrator record modifications performed by non-owner sessions.

Monitoring Recommendations

Enable detailed audit logging on all administrator account changes, including the acting user, target ID, and timestamp.
Forward CRMEB application logs and web server logs to a centralized analytics platform for cross-session correlation.
Alert on any administrator password change that is not preceded by a corresponding authenticated session for the same administrator account.

How to Mitigate CVE-2025-10389

Immediate Actions Required

Restrict network access to the CRMEB administrative interface using IP allowlists, VPN, or reverse proxy authentication until a patch is available.
Review all administrator accounts and rotate credentials, especially for accounts that may have been targeted.
Reduce the number of low-privilege administrator accounts and apply least-privilege role assignments.
Monitor the CRMEB GitHub repository for security updates beyond version 5.6.1.

Patch Information

At the time of publication, no vendor patch has been confirmed. The reporter noted that the vendor was contacted but did not respond. Organizations running CRMEB 5.6.1 or earlier should track upstream releases and apply any future security update that addresses the Save function in app/services/system/admin/SystemAdminServices.php.

Workarounds

Implement a web application firewall (WAF) rule that blocks requests to the administrator save endpoint when the submitted ID parameter does not match the session's administrator identifier.
Apply a custom server-side check in SystemAdminServices.php to validate that the authenticated session is authorized to modify the supplied ID before persisting changes.
Disable or quarantine unused administrator accounts to reduce the attack surface for authorization abuse.

bash

# Example WAF rule concept (ModSecurity-style) to block cross-ID admin save requests
# Replace placeholders with your environment's session identifier handling
SecRule REQUEST_URI "@contains /admin/system/admin/save" \
  "id:1010389,phase:2,deny,status:403,\
   msg:'CVE-2025-10389 - blocking admin save with mismatched ID',\
   chain"
  SecRule ARGS:id "!@streq %{SESSION.admin_id}"