CVE-2023-27846
📋 TL;DR
This SQL injection vulnerability in PrestaShop themevolty modules allows remote attackers to execute arbitrary SQL commands through multiple components. Attackers can gain administrative privileges, access sensitive data, or compromise the entire PrestaShop installation. All PrestaShop installations using themevolty modules v4.0.8 or earlier are affected.
💻 Affected Systems
- PrestaShop themevolty modules
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the PrestaShop installation including database takeover, customer data theft, and server compromise leading to ransomware deployment or credential harvesting.
Likely Case
Administrative privilege escalation allowing attackers to modify store content, steal customer data, install backdoors, or deploy skimmers for payment card theft.
If Mitigated
Limited impact if proper input validation and WAF rules are in place, though SQL injection attempts may still be logged.
🎯 Exploit Status
SQL injection vulnerabilities are well-understood with many automated tools available. The multiple affected components increase attack surface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v4.0.9 or later
Vendor Advisory: https://security.friendsofpresta.org/modules/2023/10/25/tvcmsblog.html
Restart Required: No
Instructions:
1. Update all themevolty modules to v4.0.9 or later via PrestaShop admin panel or manual upload. 2. Clear PrestaShop cache. 3. Verify modules are functioning correctly.
🔧 Temporary Workarounds
Disable affected modules
allTemporarily disable vulnerable themevolty modules until patching is possible
Navigate to PrestaShop admin > Modules > Module Manager > Disable affected themevolty modules
WAF rule implementation
allImplement web application firewall rules to block SQL injection patterns
ModSecurity rule: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
Cloudflare WAF: Enable SQLi protection
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries at application level
- Deploy network segmentation and restrict database access to only necessary IP addresses
🔍 How to Verify
Check if Vulnerable:
Check module versions in PrestaShop admin panel under Modules > Module Manager for any themevolty modules with version 4.0.8 or earlierCheck Version:
SELECT name, version FROM ps_module WHERE name LIKE 'tvcms%';Verify Fix Applied:
Confirm all themevolty modules show version 4.0.9 or later in module manager📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts from single IP
- Unexpected admin user creation in PrestaShop logs
Network Indicators:
- HTTP requests with SQL keywords (UNION, SELECT, INSERT) to themevolty module endpoints
- Unusual outbound database connections
SIEM Query:
source="prestashop.log" AND ("tvcmsblog" OR "tvcmsvideotab" OR "tvcmswishlist") AND ("UNION" OR "SELECT" OR "INSERT" OR "--" OR "' OR '1'='1")