CVE-2022-26268
📋 TL;DR
CVE-2022-26268 is a SQL injection vulnerability in Xiaohuanxiong v1.0 that allows attackers to execute arbitrary SQL commands via the id parameter in Books.php. This affects all deployments of Xiaohuanxiong v1.0, potentially compromising the entire database and application. Attackers can read, modify, or delete sensitive data through this vulnerability.
💻 Affected Systems
- Xiaohuanxiong
📦 What is this software?
Xiaohuanxiong by Xiaohuanxiong Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, and potential remote code execution if database functions allow file operations.
Likely Case
Unauthorized data access and extraction of sensitive information from the database, potentially including user credentials and personal data.
If Mitigated
No impact if proper input validation and parameterized queries are implemented, or if the vulnerable endpoint is not exposed.
🎯 Exploit Status
The GitHub issue shows proof-of-concept exploitation. SQL injection vulnerabilities are commonly weaponized due to their simplicity and impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement manual fixes as described in workarounds.
🔧 Temporary Workarounds
Implement Parameterized Queries
allReplace direct SQL concatenation with prepared statements using PDO or mysqli with parameter binding.
Edit /app/controller/Books.php to replace vulnerable SQL queries with prepared statements
Input Validation and Sanitization
allAdd strict input validation for the id parameter to only accept expected data types and ranges.
Add validation: if(!is_numeric($id) || $id <= 0) { return error; }
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block exploitation attempts.
Configure WAF rules to detect and block SQL injection patterns in the id parameter
🧯 If You Can't Patch
- Restrict access to the vulnerable endpoint using network controls or authentication
- Implement database-level protections: use least privilege accounts, enable logging of all database queries
🔍 How to Verify
Check if Vulnerable:
Test the /app/controller/Books.php endpoint with SQL injection payloads in the id parameter (e.g., id=1' OR '1'='1). Monitor for database errors or unexpected responses.Check Version:
Check the application version in configuration files or by examining the codebase structure for v1.0 indicatorsVerify Fix Applied:
After implementing fixes, test with the same SQL injection payloads. Verify that queries are properly parameterized and no SQL errors are returned.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- PHP error logs containing SQL syntax errors
- Multiple requests with SQL-like patterns in id parameter
Network Indicators:
- HTTP requests to Books.php with SQL injection patterns in parameters
- Unusual database traffic patterns
SIEM Query:
source="web_logs" AND uri="/app/controller/Books.php" AND (param="id" AND value MATCHES "[';]|OR|UNION|SELECT")