CVE-2026-1195

5.0 MEDIUM

📋 TL;DR

This vulnerability in MineAdmin's JWT token refresh function allows attackers to bypass authentication by manipulating insufficiently verified data. It affects all MineAdmin 1.x and 2.x installations, enabling potential unauthorized access to administrative functions. The attack can be performed remotely but requires high complexity to execute successfully.

💻 Affected Systems

Products:
  • MineAdmin
Versions: 1.x and 2.x
Operating Systems: All platforms running MineAdmin
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with the vulnerable JWT token handler component are affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through privilege escalation, allowing attackers to gain administrative access, modify system configurations, and potentially execute arbitrary code.

🟠

Likely Case

Unauthorized access to administrative functions, data leakage, and potential manipulation of system settings without proper authentication.

🟢

If Mitigated

Limited impact with proper network segmentation, strong authentication controls, and monitoring in place to detect anomalous token refresh attempts.

🌐 Internet-Facing: HIGH - Attack can be performed remotely, and public exploit code exists, making internet-facing instances particularly vulnerable.
🏢 Internal Only: MEDIUM - While still vulnerable, internal systems benefit from network segmentation and additional security layers that reduce exposure.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: HIGH

Exploit code is publicly available but requires understanding of JWT manipulation and the specific MineAdmin implementation. Attack complexity is rated as high.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None - vendor did not respond to disclosure

Restart Required: No

Instructions:

No official patch available. Consider upgrading to a non-vulnerable version if available, or implement workarounds.

🔧 Temporary Workarounds

Disable vulnerable endpoint

all

Temporarily disable or restrict access to the /system/refresh endpoint that handles JWT token refresh functionality

# Configure web server (nginx example) to block /system/refresh
location /system/refresh { deny all; }
# Configure firewall to block access to refresh endpoint

Implement additional JWT validation

all

Add custom validation logic to verify JWT token authenticity beyond the vulnerable refresh function

# Custom middleware or validation function required
# Implementation depends on MineAdmin framework specifics

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the MineAdmin interface
  • Deploy a Web Application Firewall (WAF) with rules to detect and block JWT manipulation attempts

🔍 How to Verify

Check if Vulnerable:

Check if your MineAdmin installation is version 1.x or 2.x and has the /system/refresh endpoint accessible

Check Version:

# Check MineAdmin version in configuration files or admin interface
# Typically in config files or via admin panel

Verify Fix Applied:

Test if JWT token refresh functionality properly validates token authenticity and rejects manipulated tokens

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed JWT refresh attempts
  • Unusual token refresh patterns from unexpected IPs
  • Access to /system/refresh endpoint with malformed tokens

Network Indicators:

  • Unusual traffic to /system/refresh endpoint
  • HTTP requests with manipulated JWT tokens in headers

SIEM Query:

source="web_server" AND (uri="/system/refresh" OR uri="/system/refresh/") AND (status_code=200 OR status_code=401) | stats count by src_ip

🔗 References

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