CVE-2021-46458
📋 TL;DR
Victor CMS v1.0 contains a SQL injection vulnerability in the admin/posts.php component that allows attackers to execute arbitrary SQL commands through the post_title parameter. This can lead to unauthorized data access, modification, or deletion. Administrators using the vulnerable CMS version are affected.
💻 Affected Systems
- Victor CMS
📦 What is this software?
Victor Cms by Victor Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, or full system takeover via SQL injection leading to remote code execution.
Likely Case
Unauthorized access to sensitive data, privilege escalation, or modification/deletion of CMS content.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
Exploit requires admin authentication but SQL injection is straightforward once authenticated. Public proof-of-concept exists in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative CMS or implementing custom fixes with parameterized queries.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to sanitize post_title parameter before processing
Modify admin/posts.php to add: $post_title = mysqli_real_escape_string($connection, $_POST['post_title']);
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: SecRule ARGS:post_title "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Isolate the CMS instance behind additional authentication layers
- Implement network segmentation to limit database access from CMS server
🔍 How to Verify
Check if Vulnerable:
Check if running Victor CMS v1.0 and test post_title parameter with SQL injection payloads like: ' OR '1'='1Check Version:
Check CMS configuration files or admin panel for version informationVerify Fix Applied:
Test the post_title parameter with SQL injection payloads and verify no database errors or unexpected behavior occurs📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in application logs
- Multiple failed login attempts followed by admin access
- Suspicious POST requests to admin/posts.php with SQL keywords
Network Indicators:
- Unusual database queries from CMS server
- POST requests containing SQL injection patterns in post_title parameter
SIEM Query:
source="web_logs" AND uri="/admin/posts.php" AND (post_title CONTAINS "UNION" OR post_title CONTAINS "SELECT" OR post_title CONTAINS "OR '1'='1'")