Overview
The CVE-2025-46539 vulnerability refers to an SQL injection flaw found in WPFable Fable Extra, a widely used web application. This vulnerability, classified as a Blind SQL Injection, could allow a potential attacker to compromise the system and possibly result in a data leak. The severity and implications of this vulnerability underline the importance of immediate mitigation, as it opens the door for unauthorized access to sensitive data, making it a significant threat to data security and integrity.
Vulnerability Summary
CVE ID: CVE-2025-46539
Severity: Critical (CVSS 9.3)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
WPFable Fable Extra | n/a to 1.0.6
How the Exploit Works
The exploit works by taking advantage of improperly neutralized special elements in an SQL command within the WPFable Fable Extra. An attacker can manipulate SQL queries in the application through the input data, permitting them to execute arbitrary SQL commands. This vulnerability, being a Blind SQL Injection, doesn’t directly return the details of the database but instead allows the attacker to ask true or false questions to the database, ultimately revealing the information.
Conceptual Example Code
Below is a conceptual code example of how the vulnerability might be exploited. In this case, a malicious payload is inserted into the user input field, which alters the structure of the SQL command:
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "userInput": "' OR '1'='1'; --" }In this example, the “userInput” string is manipulated in such a way that the SQL command is always true, allowing the attacker to bypass security measures and access sensitive data.
Mitigation
The best form of mitigation for this vulnerability is to apply the patch provided by the vendor. However, in the absence of a vendor patch or until the patch can be applied, it is advisable to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help monitor and block suspicious activities, thus reducing the risk of a successful exploit.
In the long term, it is also recommended to follow secure coding practices and perform regular security audits to prevent such vulnerabilities from arising in the future.