CVE-2025-56435
📋 TL;DR
A SQL injection vulnerability in FoxCMS v1.2.6 and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter in /DataBackup.php. This could lead to unauthorized data access, modification, or deletion. Organizations using vulnerable FoxCMS versions are affected.
💻 Affected Systems
- FoxCMS
📦 What is this software?
Foxcms by Foxcms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data theft, data destruction, or remote code execution through database functions.
Likely Case
Unauthorized data access, privilege escalation, or database manipulation leading to information disclosure.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions in place.
🎯 Exploit Status
Exploitation requires understanding of SQL injection techniques and access to vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.2.7 or later
Vendor Advisory: https://www.yuque.com/g/u43151774/zhyb2o/udq6lsnv80vnhbr4/collaborator/join?token=dU5eQpE4j6zEmVuK&source=doc_collaborator
Restart Required: No
Instructions:
1. Download latest FoxCMS version from official source. 2. Backup current installation. 3. Replace vulnerable files with patched versions. 4. Verify functionality.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and parameterized queries for the id parameter in DataBackup.php
Access Restriction
allRestrict access to /DataBackup.php endpoint to authorized users only
🧯 If You Can't Patch
- Implement web application firewall (WAF) with SQL injection rules
- Disable or restrict access to /DataBackup.php endpoint
🔍 How to Verify
Check if Vulnerable:
Check if FoxCMS version is 1.2.6 or earlier and /DataBackup.php exists with id parameter handlingCheck Version:
Check FoxCMS configuration files or admin panel for version informationVerify Fix Applied:
Verify FoxCMS version is 1.2.7 or later and test SQL injection attempts against /DataBackup.php📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple requests to /DataBackup.php with SQL-like parameters
Network Indicators:
- HTTP requests to /DataBackup.php containing SQL keywords in parameters
SIEM Query:
source="web_logs" AND uri="/DataBackup.php" AND (param="id" AND value CONTAINS "UNION" OR "SELECT" OR "INSERT" OR "DELETE")