CVE-2025-9398: YiFang CMS Information Disclosure Flaw

CVE-2025-9398 Overview

A security vulnerability has been discovered in YiFang CMS versions up to 2.0.5. This information disclosure vulnerability affects the exportInstallTable function within the file app/utils/base/database/Migrate.php. The flaw allows remote attackers to manipulate the function and gain unauthorized access to sensitive information. The exploit has been publicly disclosed, and the vendor was contacted but did not respond.

Critical Impact
Remote attackers can exploit this vulnerability to access sensitive information from the database migration functionality without authentication, potentially exposing database schema details, configuration data, or other internal system information.

Affected Products

YiFang CMS up to version 2.0.5
Wanglongcn YiFang (all versions prior to patch)

Discovery Timeline

2025-08-25 - CVE-2025-9398 published to NVD
2025-12-11 - Last updated in NVD database

Technical Details for CVE-2025-9398

Vulnerability Analysis

This vulnerability is classified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The vulnerable function exportInstallTable in the Migrate.php file fails to properly validate or restrict access to database-related operations. When exploited, attackers can manipulate the function to disclose internal information that should remain protected.

The vulnerability is network-accessible, meaning attackers can exploit it remotely without requiring any authentication or user interaction. While the impact is limited to confidentiality (information disclosure only), the exposed data could provide attackers with valuable reconnaissance information for further attacks against the system.

Root Cause

The root cause of this vulnerability lies in improper access controls and insufficient input validation within the exportInstallTable function. The function, located in app/utils/base/database/Migrate.php, does not adequately verify the caller's authorization before processing database export operations. This allows unauthorized users to invoke the function and retrieve sensitive database migration information that should be restricted to administrative users only.

Attack Vector

The attack can be initiated remotely over the network. An attacker can craft malicious requests targeting the exportInstallTable function endpoint. Since no authentication or special privileges are required, any remote attacker with network access to the vulnerable CMS can exploit this flaw.

The exploitation process involves sending specially crafted HTTP requests to the vulnerable endpoint. Upon successful exploitation, the attacker receives sensitive information about the database structure or installation configuration. Technical details and proof-of-concept information are available in the GitHub PoC Repository.

Detection Methods for CVE-2025-9398

Indicators of Compromise

Unusual HTTP requests targeting /app/utils/base/database/Migrate.php or related endpoints
Unexpected access patterns to database export functionality
Log entries showing invocations of the exportInstallTable function from unauthorized sources
Network traffic containing database schema or configuration data in HTTP responses

Detection Strategies

Monitor web server access logs for requests targeting the Migrate.php file or database utility endpoints
Implement web application firewall (WAF) rules to detect and block suspicious requests to the affected function
Review application logs for unauthorized database export operations
Deploy intrusion detection systems (IDS) with signatures for YiFang CMS exploitation attempts

Monitoring Recommendations

Enable detailed logging for all database-related operations in YiFang CMS
Set up alerts for any access to the exportInstallTable function from non-administrative contexts
Monitor outbound network traffic for potential data exfiltration containing database information
Implement file integrity monitoring on the app/utils/base/database/ directory

How to Mitigate CVE-2025-9398

Immediate Actions Required

Restrict network access to the YiFang CMS administrative functions using firewall rules or network segmentation
Implement additional authentication controls on the Migrate.php file and database utility endpoints
Consider temporarily disabling the database export functionality until a patch is available
Review access logs to identify any potential past exploitation attempts

Patch Information

As of the last update, the vendor (Wanglongcn) was contacted about this vulnerability but did not respond. No official patch is currently available. Organizations using YiFang CMS should implement the workarounds below and monitor for any future vendor updates. Additional vulnerability details are available at VulDB #321234.

Workarounds

Apply access control lists (ACLs) to restrict access to the Migrate.php file to trusted IP addresses only
Implement .htaccess rules or web server configuration to block direct access to the database utilities directory
Deploy a web application firewall (WAF) to filter malicious requests targeting the vulnerable endpoint
If not needed for production operations, consider removing or renaming the Migrate.php file

bash

# Example: Block access to the vulnerable file via Apache .htaccess
# Add to .htaccess in the web root directory
<Files "Migrate.php">
    Order Deny,Allow
    Deny from all
    Allow from 127.0.0.1
    # Add trusted admin IPs below
    # Allow from 192.168.1.100
</Files>