Overview
This blog post is about a significant vulnerability, CVE-2025-39403, which affects the mojoomla WPAMS. This vulnerability is an SQL Injection risk that could potentially lead to system compromise or data leakage. It is particularly important and concerning for users and administrators of WPAMS from n/a through 44.0 (17-08-2023) as these versions are affected by this vulnerability. This SQL injection vulnerability can be exploited by attackers to manipulate SQL queries, making it possible for them to access, modify, and delete data in a database that they wouldn’t normally have access to.
Vulnerability Summary
CVE ID: CVE-2025-39403
Severity: High (8.5 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Mojoomla WPAMS | n/a through 44.0 (17-08-2023)
How the Exploit Works
This exploit works by injecting malicious SQL commands into the application’s input data. The application then executes these commands blindly, treating the input as trusted data. This allows the attacker to manipulate the application’s SQL queries, which can lead to unauthorized data access, data corruption, or even data deletion.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. This SQL Injection attack is made possible by inserting a malicious SQL command into a form or URL parameter.
POST /mojoomla/wpams/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=admin' OR '1'='1';--&password=In this example, the SQL command `’ OR ‘1’=’1′;–` is injected into the username field. This alters the SQL query to return all users because ‘1’=’1′ is always true. The `–` at the end of the command is a SQL comment, so anything after it is ignored. This means that the password check is bypassed, and the attacker is logged in as the first user in the database, usually an administrator.
Mitigation Guidance
The best way to mitigate this vulnerability is by applying the vendor patch immediately. If that’s not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, they are not a long-term solution, as they may not block all variations of SQL Injection attacks. It is also crucial to sanitize user input and apply the principle of least privilege, giving users only the access they need to perform their tasks.