CVE-2025-62192
📋 TL;DR
An SQL injection vulnerability in GroupSession products allows authenticated users to execute arbitrary SQL commands. This could lead to unauthorized access, modification, or exfiltration of database contents. Affected users include those running vulnerable versions of GroupSession Free edition, GroupSession byCloud, or GroupSession ZION.
💻 Affected Systems
- GroupSession Free edition
- GroupSession byCloud
- GroupSession ZION
📦 What is this software?
Groupsession by Groupsession
Groupsession by Groupsession
Groupsession by Groupsession
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, or potential remote code execution if database functions allow it.
Likely Case
Unauthorized access to sensitive information stored in the database, potentially including user credentials, personal data, or business information.
If Mitigated
Limited impact due to proper input validation, parameterized queries, or database permissions restricting user access.
🎯 Exploit Status
Exploitation requires authenticated access but SQL injection vulnerabilities are typically easy to exploit once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: GroupSession Free edition ver5.3.0+, GroupSession byCloud ver5.3.3+, GroupSession ZION ver5.3.2+
Vendor Advisory: https://groupsession.jp/info/info-news/security20251208
Restart Required: Yes
Instructions:
1. Backup your GroupSession installation and database. 2. Download the patched version from the official vendor site. 3. Follow the vendor's upgrade instructions for your specific GroupSession edition. 4. Restart the application/service. 5. Verify the upgrade was successful.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement strict input validation on all user-supplied parameters that interact with the database.
Database Permission Restriction
allLimit database user permissions to only necessary operations (SELECT, INSERT, UPDATE as needed).
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block SQL injection attempts
- Restrict network access to GroupSession to only trusted users and implement strong authentication controls
🔍 How to Verify
Check if Vulnerable:
Check the GroupSession version in the application settings or admin panel. Compare against affected version ranges.Check Version:
Check via GroupSession admin interface or configuration files specific to your installation.Verify Fix Applied:
Verify the version number shows patched version (5.3.0+ for Free, 5.3.3+ for byCloud, 5.3.2+ for ZION) and test SQL injection attempts are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual database queries in application logs
- Multiple failed login attempts followed by SQL error messages
- Unexpected database access patterns
Network Indicators:
- SQL keywords in HTTP POST/GET parameters
- Unusual database connection patterns from application servers
SIEM Query:
source="groupsession.logs" AND ("SQL syntax" OR "database error" OR "unexpected token")