CVE-2025-5400
📋 TL;DR
This CVE describes a critical SQL injection vulnerability in chaitak-gorai Blogbook's user.php file. Attackers can manipulate the u_id GET parameter to execute arbitrary SQL commands remotely. All deployments using affected versions are vulnerable to database compromise.
💻 Affected Systems
- chaitak-gorai Blogbook
📦 What is this software?
Blogbook by Chaitak Gorai
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, authentication bypass, and potential server takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized data access, user information theft, and potential privilege escalation within the application.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permission restrictions in place.
🎯 Exploit Status
Exploit details are publicly available in GitHub repository; remote exploitation requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None
Restart Required: No
Instructions:
No official patch available. Vendor was contacted but did not respond. Consider migrating to alternative software or implementing workarounds.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns targeting the u_id parameter
Input Validation Filter
allAdd server-side validation to only accept numeric values for u_id parameter
Add validation in user.php: if(!is_numeric($_GET['u_id'])) { die('Invalid input'); }
🧯 If You Can't Patch
- Isolate the Blogbook instance behind a reverse proxy with strict input filtering
- Implement database-level controls: restrict application database user permissions to SELECT only
🔍 How to Verify
Check if Vulnerable:
Test with SQL injection payloads against /user.php?u_id= parameter; check commit hash against vulnerable rangeCheck Version:
Check git commit hash: git log --oneline -1Verify Fix Applied:
Test with SQL injection payloads; verify input validation rejects non-numeric u_id values📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple requests to /user.php with suspicious u_id parameters
- Database query errors containing SQL syntax
Network Indicators:
- HTTP requests to /user.php containing SQL keywords in u_id parameter
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND uri_path="/user.php" AND (query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*INSERT*" OR query_string="*DELETE*")