CVE-2026-2894: Funadmin Information Disclosure Flaw

CVE-2026-2894 Overview

A vulnerability was identified in Funadmin up to version 7.1.0-rc4. Affected by this vulnerability is the function getMember of the file app/frontend/view/login/forget.html. Such manipulation leads to information disclosure. The attack may be launched remotely without authentication. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Critical Impact

This information disclosure vulnerability allows unauthenticated remote attackers to extract sensitive member data through the getMember function, potentially exposing user credentials or personal information.

Affected Products

• Funadmin 7.1.0-rc1
• Funadmin 7.1.0-rc2
• Funadmin 7.1.0-rc3
• Funadmin 7.1.0-rc4
• Funadmin versions up to 7.1.0-rc4

Discovery Timeline

• 2026-02-21 - CVE-2026-2894 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2026-2894

Vulnerability Analysis

This vulnerability is classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The flaw exists within the getMember function located in the app/frontend/view/login/forget.html template file, which is part of the password recovery functionality. When exploited, the function improperly exposes member information to unauthorized users who can interact with the forget password feature remotely.

The vulnerability allows attackers to retrieve sensitive member data without proper authorization checks. Since the vulnerable endpoint is accessible via the network without authentication requirements, any remote attacker can potentially enumerate and extract user information from the application.

Root Cause

The root cause of this vulnerability stems from insufficient access control and improper validation within the getMember function. The password recovery functionality in forget.html fails to properly restrict the information returned by the getMember function, allowing unauthorized data exposure. This appears to be a design flaw where sensitive member data is made accessible through the login recovery flow without adequate authorization verification.

Attack Vector

The attack can be launched remotely over the network. An attacker can target the password recovery functionality at app/frontend/view/login/forget.html and manipulate requests to the getMember function to extract sensitive member information. No prior authentication is required, and the attack does not require user interaction, making it trivial for attackers to exploit at scale.

The vulnerability is particularly concerning because:

• It is remotely exploitable without authentication
• The exploit has been publicly documented
• The vendor has not responded to disclosure attempts

For detailed technical analysis of the exploitation method, refer to the GitHub Issue Report and VulDB Analysis #347205.

Detection Methods for CVE-2026-2894

Indicators of Compromise

• Unusual or excessive requests to the /login/forget.html endpoint or related password recovery paths
• Repeated calls to the getMember function from external IP addresses
• Anomalous patterns in access logs showing enumeration attempts against user recovery features
• Evidence of bulk data extraction through the password reset functionality

Detection Strategies

• Monitor web server access logs for suspicious patterns targeting the password recovery endpoint
• Implement rate limiting detection rules for the forget password functionality
• Deploy web application firewall (WAF) rules to detect and block information disclosure attempts
• Configure alerting for unusual response sizes from the getMember endpoint that may indicate data leakage

Monitoring Recommendations

• Enable detailed logging for all authentication and password recovery related endpoints
• Set up real-time alerting for multiple failed or suspicious password recovery attempts from the same source
• Monitor for reconnaissance activity targeting user enumeration through the affected functionality
• Review application logs periodically for evidence of exploitation attempts

How to Mitigate CVE-2026-2894

Immediate Actions Required

• Restrict access to the vulnerable forget.html endpoint using network-level controls such as firewall rules or IP whitelisting
• Implement rate limiting on the password recovery functionality to slow down enumeration attempts
• Consider temporarily disabling the password recovery feature if it is not business-critical
• Review application logs for signs of prior exploitation and potential data exposure

Patch Information

As of the last update on 2026-02-24, the vendor (Funadmin) has not released an official security patch for this vulnerability. The vendor was contacted early about this disclosure but did not respond. Organizations using Funadmin should monitor the official Funadmin repository and VulDB for updates regarding a security fix.

Workarounds

• Implement access controls at the web server or reverse proxy level to restrict access to the forget.html endpoint
• Add additional authentication or CAPTCHA requirements before allowing access to password recovery features
• Deploy a Web Application Firewall (WAF) with rules to filter and monitor requests to the vulnerable endpoint
• Consider implementing custom input validation and output filtering in front of the getMember function if source code access is available

# Example: Nginx configuration to restrict access to vulnerable endpoint
location /login/forget.html {
    # Allow only internal network access
    allow 10.0.0.0/8;
    allow 192.168.0.0/16;
    deny all;
    
    # Rate limiting to slow down enumeration
    limit_req zone=password_recovery burst=5 nodelay;
}