CVE-2025-11426

6.3 MEDIUM

📋 TL;DR

Advanced Library Management System 1.0 contains an unrestricted file upload vulnerability in the edit_book.php file's image parameter. This allows remote attackers to upload malicious files, potentially leading to server compromise. All systems running this software version are affected.

💻 Affected Systems

Products:
  • Advanced Library Management System
Versions: 1.0
Operating Systems: Any OS running PHP web server
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all installations of version 1.0; no special configuration required

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data theft, or ransomware deployment

🟠

Likely Case

Webshell upload enabling persistent backdoor access and data exfiltration

🟢

If Mitigated

File upload blocked or malicious files quarantined with minimal impact

🌐 Internet-Facing: HIGH - Attack can be launched remotely without authentication
🏢 Internal Only: MEDIUM - Requires internal network access but still exploitable

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit details are publicly available; manipulation of image parameter required

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available; consider workarounds or alternative software

🔧 Temporary Workarounds

File Upload Restriction

all

Implement server-side validation to restrict uploaded file types to images only

Modify edit_book.php to validate file extensions and MIME types

Access Control

all

Restrict access to edit_book.php to authenticated users only

Add authentication check at beginning of edit_book.php

🧯 If You Can't Patch

  • Remove or rename edit_book.php file if not essential
  • Implement web application firewall rules to block malicious file uploads

🔍 How to Verify

Check if Vulnerable:

Attempt to upload a non-image file (e.g., .php, .exe) via edit_book.php image parameter

Check Version:

Check software version in admin panel or configuration files

Verify Fix Applied:

Test that only valid image files can be uploaded and malicious files are rejected

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads to edit_book.php
  • Uploads of non-image file types
  • Large number of upload attempts

Network Indicators:

  • POST requests to edit_book.php with file uploads
  • Unusual traffic patterns to upload endpoint

SIEM Query:

source="web_logs" AND uri="/edit_book.php" AND method="POST" AND (file_extension!="jpg" OR file_extension!="png" OR file_extension!="gif")

🔗 References

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