CVE-2025-25875

6.4 MEDIUM

📋 TL;DR

CVE-2025-25875 is an SQL injection vulnerability in ITSourcecode Simple ChatBox that allows attackers to execute arbitrary SQL queries through the /message.php endpoint. This can lead to unauthorized access to sensitive data stored in the database. All users running Simple ChatBox version 1.0 or earlier are affected.

💻 Affected Systems

Products:
  • ITSourcecode Simple ChatBox
Versions: Up to and including version 1.0
Operating Systems: All operating systems running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Any installation with the vulnerable /message.php file is affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise including extraction of user credentials, personal data, and chat history; potential for database modification or deletion.

🟠

Likely Case

Unauthorized data extraction from the chat database including user information and message content.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH - The vulnerability is in a web application component accessible over HTTP/HTTPS.
🏢 Internal Only: MEDIUM - Internal systems could still be targeted by authenticated malicious users.

🎯 Exploit Status

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

Proof of concept available on GitHub demonstrates straightforward SQL injection payloads.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative software or implementing workarounds.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation and parameterized queries in /message.php

Edit /message.php to use prepared statements: $stmt = $conn->prepare('SELECT * FROM messages WHERE id = ?'); $stmt->bind_param('i', $input);

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns

Add WAF rule: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403"

🧯 If You Can't Patch

  • Isolate the chat application in a segmented network zone with restricted database access
  • Implement strict network access controls to limit who can reach the /message.php endpoint

🔍 How to Verify

Check if Vulnerable:

Test /message.php endpoint with SQL injection payloads like: message.php?id=1' OR '1'='1

Check Version:

Check the software version in the application's configuration or about page

Verify Fix Applied:

Verify that SQL injection payloads no longer return database errors or unexpected data

📡 Detection & Monitoring

Log Indicators:

  • SQL syntax errors in web server logs
  • Unusual database query patterns from web application

Network Indicators:

  • HTTP requests to /message.php with SQL keywords (SELECT, UNION, etc.) in parameters

SIEM Query:

source="web_logs" AND uri="/message.php" AND (message="*SQL*" OR param="*' OR*" OR param="*UNION*" OR param="*SELECT*" OR param="*--*" OR param="*/*")

🔗 References

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