CVE-2022-26613
📋 TL;DR
CVE-2022-26613 is a critical SQL injection vulnerability in PHP-CMS v1.0 that allows attackers to execute arbitrary SQL commands via the category parameter in categorymenu.php. This affects all users running PHP-CMS v1.0, potentially leading to complete database compromise. The vulnerability is particularly dangerous because it can be exploited without authentication.
💻 Affected Systems
- PHP-CMS
📦 What is this software?
Php Cms by Php Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via database functions.
Likely Case
Unauthorized data access, data exfiltration, and potential authentication bypass leading to administrative access.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing SQL injection.
🎯 Exploit Status
Multiple public GitHub repositories contain exploit code and demonstrations. The vulnerability is simple to exploit with basic SQL injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Replace vulnerable categorymenu.php file with patched version from community sources
2. Implement parameterized queries for all database operations
3. Add input validation for the category parameter
4. Test thoroughly before deployment
🔧 Temporary Workarounds
Input Validation Filter
allAdd strict input validation to only accept expected values for the category parameter
# In categorymenu.php, add before SQL query:
$category = filter_var($_GET['category'], FILTER_VALIDATE_INT);
if (!$category) { die('Invalid input'); }
Web Application Firewall Rule
allBlock SQL injection patterns in the category parameter
# Example ModSecurity rule:
SecRule ARGS:category "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
🧯 If You Can't Patch
- Immediately disable or remove the categorymenu.php file if not essential
- Implement network segmentation and restrict access to the vulnerable application
🔍 How to Verify
Check if Vulnerable:
Test by sending SQL injection payloads to the category parameter in categorymenu.php (e.g., category=1' OR '1'='1)Check Version:
# Check PHP-CMS version in configuration files or admin panel
# Typically in config.php or similar configuration filesVerify Fix Applied:
Test with the same SQL injection payloads and verify they are rejected or properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts following SQL injection patterns
- Requests with SQL keywords in category parameter
Network Indicators:
- HTTP requests containing SQL injection patterns in query strings
- Unusual database query patterns from web server
SIEM Query:
source="web_logs" AND (uri="*categorymenu.php*" AND query="*UNION*" OR query="*SELECT*" OR query="*OR '1'='1*")🔗 References
- https://github.com/harshitbansal373/PHP-CMS/issues/14
- https://github.com/harshitbansal373/PHP-CMS/issues/15
- https://github.com/nu11secur1ty/CVE-mitre/tree/main/2022/CVE-2022-26613
- https://github.com/harshitbansal373/PHP-CMS/issues/14
- https://github.com/harshitbansal373/PHP-CMS/issues/15
- https://github.com/nu11secur1ty/CVE-mitre/tree/main/2022/CVE-2022-26613
