CVE-2023-27637

9.8 CRITICAL

📋 TL;DR

This CVE describes a SQL injection vulnerability in the tshirtecommerce (Custom Product Designer) component for PrestaShop. Attackers can forge HTTP requests with a compromised product_id parameter to execute arbitrary SQL commands. All PrestaShop installations using the vulnerable tshirtecommerce component version are affected.

💻 Affected Systems

Products:
  • PrestaShop tshirtecommerce (Custom Product Designer) component
Versions: 2.1.4 and possibly earlier versions
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires PrestaShop installation with the tshirtecommerce component enabled.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, privilege escalation, and potential remote code execution via database functions.

🟠

Likely Case

Unauthorized data access, modification, or deletion of e-commerce data including customer information, orders, and products.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries preventing SQL injection.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Actively exploited in the wild since March 2023 with simple HTTP request manipulation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.1.5 or later

Vendor Advisory: https://friends-of-presta.github.io/security-advisories/module/2023/03/21/tshirtecommerce_cwe-89.html

Restart Required: No

Instructions:

1. Update tshirtecommerce component to version 2.1.5 or later. 2. Download from official vendor. 3. Replace vulnerable files. 4. Clear PrestaShop cache.

🔧 Temporary Workarounds

Input Validation Filter

all

Add input validation for product_id parameter in designer.php

Modify designer.php to validate product_id as integer: if(!is_numeric($_GET['product_id'])) { die('Invalid input'); }

WAF Rule

all

Implement web application firewall rules to block SQL injection patterns

Add WAF rule: Detect and block requests with SQL keywords in product_id parameter

🧯 If You Can't Patch

  • Disable or remove the tshirtecommerce component entirely
  • Implement network segmentation to restrict access to affected systems

🔍 How to Verify

Check if Vulnerable:

Check PrestaShop modules directory for tshirtecommerce component version 2.1.4 or earlier

Check Version:

Check module version in PrestaShop admin panel or examine module files

Verify Fix Applied:

Verify tshirtecommerce component version is 2.1.5 or later and test SQL injection attempts are blocked

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in database logs
  • HTTP requests with SQL keywords in product_id parameter
  • Multiple failed login attempts from single IP

Network Indicators:

  • HTTP GET requests to designer.php with suspicious product_id values
  • Unusual database connection patterns

SIEM Query:

source="web_logs" AND uri="*designer.php*" AND (query="*product_id=*UNION*" OR query="*product_id=*SELECT*" OR query="*product_id=*INSERT*")

🔗 References

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