CVE-2025-13239
📋 TL;DR
This vulnerability in Bdtask/CodeCanyon Isshue Multi Store eCommerce Shopping Cart Solution 5 allows attackers to manipulate checkout parameters (order_total_amount/cart_total_amount) to enforce behavioral workflow. It affects systems running the vulnerable software and can be exploited remotely. The vendor has not responded to disclosure attempts.
💻 Affected Systems
- Bdtask/CodeCanyon Isshue Multi Store eCommerce Shopping Cart Solution
📦 What is this software?
Isshue by Bdtask
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate pricing, order processing, or workflow enforcement leading to financial loss, data integrity issues, or unauthorized order modifications.
Likely Case
Price manipulation during checkout, potentially allowing attackers to purchase items at incorrect prices or bypass payment validation.
If Mitigated
Limited impact if proper input validation and business logic controls are in place to verify order amounts server-side.
🎯 Exploit Status
Exploit details are publicly available in GitHub PoC repositories. Attack requires manipulation of checkout parameters which is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider alternative ecommerce solutions or implement custom fixes with proper input validation.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation of order_total_amount and cart_total_amount parameters to ensure they match calculated values.
Web Application Firewall Rules
allDeploy WAF rules to block suspicious parameter manipulation in /submit_checkout requests.
🧯 If You Can't Patch
- Disable or restrict access to the /submit_checkout endpoint if not essential
- Implement additional server-side business logic validation for all checkout transactions
🔍 How to Verify
Check if Vulnerable:
Test if manipulating order_total_amount or cart_total_amount parameters in /submit_checkout requests bypasses validation.Check Version:
Check software version in admin panel or configuration filesVerify Fix Applied:
Verify that parameter manipulation no longer affects checkout processing and all amounts are validated server-side.📡 Detection & Monitoring
Log Indicators:
- Unusual order_total_amount values in checkout logs
- Mismatch between submitted and calculated order amounts
Network Indicators:
- HTTP POST requests to /submit_checkout with modified amount parameters
SIEM Query:
source="web_logs" AND uri_path="/submit_checkout" AND (order_total_amount!=* OR cart_total_amount!=*)