CVE-2025-6847
📋 TL;DR
A critical SQL injection vulnerability exists in Simple Forum 1.0's /forum_edit.php file, allowing remote attackers to manipulate database queries via the 'iii' parameter. This affects all users running Simple Forum 1.0 with the vulnerable file accessible. Attackers can potentially read, modify, or delete database content.
💻 Affected Systems
- Simple Forum
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover if database privileges allow file system access or command execution.
Likely Case
Unauthorized data extraction from the forum database including user credentials, private messages, and administrative information.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
Public proof-of-concept available on GitHub. SQL injection via 'iii' parameter is straightforward to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://code-projects.org/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If no patch available, implement workarounds. 3. Consider migrating to supported forum software.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize the 'iii' parameter before processing
Modify /forum_edit.php to validate 'iii' parameter as integer using is_numeric() or similar
Web Application Firewall
allDeploy WAF rules to block SQL injection patterns
Add WAF rule: deny requests with SQL keywords in 'iii' parameter
🧯 If You Can't Patch
- Block external access to /forum_edit.php using firewall rules or .htaccess
- Implement database user with minimal privileges (read-only if possible)
🔍 How to Verify
Check if Vulnerable:
Test /forum_edit.php with SQL injection payloads in 'iii' parameter (e.g., ' OR '1'='1)Check Version:
Check Simple Forum version in admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection after implementing fixes; should return error or no data leakage📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in web server logs
- Multiple requests to /forum_edit.php with suspicious parameters
Network Indicators:
- SQL keywords in HTTP GET/POST parameters
- Unusual database query patterns
SIEM Query:
source="web_logs" AND uri="/forum_edit.php" AND (param="iii" AND value MATCHES "(?i)(union|select|insert|update|delete|drop|or|and)")