CVE-2025-15262
📋 TL;DR
BiggiDroid Simple PHP CMS 1.0 has an unrestricted file upload vulnerability in the Site Logo Handler component. Attackers can upload malicious files via the /admin/edit.php file's image parameter, potentially leading to remote code execution. This affects all installations of BiggiDroid Simple PHP CMS 1.0.
💻 Affected Systems
- BiggiDroid Simple PHP CMS
📦 What is this software?
Simple Php Cms by Biggidroid
⚠️ Risk & Real-World Impact
Worst Case
Remote attacker uploads a web shell, gains full control of the web server, and pivots to internal network systems.
Likely Case
Attacker uploads malicious PHP files to execute arbitrary code, deface websites, or steal data from the CMS database.
If Mitigated
If proper file upload validation is implemented, only legitimate image files can be uploaded, preventing code execution.
🎯 Exploit Status
Exploit details are publicly available. Attack requires admin authentication but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds.
🔧 Temporary Workarounds
Implement File Upload Validation
allAdd server-side validation to restrict uploaded files to specific image types (e.g., .jpg, .png) and verify file signatures.
Modify /admin/edit.php to include file type checking and MIME validation
Restrict Access to Admin Panel
linuxLimit access to the /admin directory using IP whitelisting or strong authentication mechanisms.
Add .htaccess rules to restrict IPs: Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
🧯 If You Can't Patch
- Disable the Site Logo Handler functionality entirely if not needed.
- Implement a Web Application Firewall (WAF) with rules to block malicious file uploads.
🔍 How to Verify
Check if Vulnerable:
Check if /admin/edit.php exists and lacks proper file upload validation for the image parameter.Check Version:
Check CMS version in configuration files or admin panel; look for 'BiggiDroid Simple PHP CMS 1.0'.Verify Fix Applied:
Attempt to upload a non-image file via /admin/edit.php; it should be rejected with proper error messages.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /admin/edit.php, especially non-image files or files with executable extensions.
Network Indicators:
- HTTP POST requests to /admin/edit.php with file uploads containing suspicious content.
SIEM Query:
source="web_logs" AND uri="/admin/edit.php" AND method="POST" AND (file_extension="php" OR file_extension="exe")