code-projects Farmacia editar-fornecedor.php cross site scripting

Successful exploitation of CVE-2024-11996 allows an attacker to execute arbitrary JavaScript code within the context of a victim's browser session. This can lead to various malicious outcomes, including session hijacking, defacement of the application, and theft of sensitive information like login credentials or personal data. The attacker could potentially redirect users to phishing sites or install malware. Because the vulnerability is triggered remotely via the 'cidade' parameter, it is relatively easy to exploit, requiring only the crafting of a malicious URL.

Organizations and individuals using Farmacia version 1.0 are at risk. Shared hosting environments where multiple users share the same server instance are particularly vulnerable, as an attacker could potentially compromise other users through this XSS vulnerability. Users who rely on Farmacia for sensitive data management are also at increased risk.

• php / web: Examine access logs for requests to /editar-fornecedor.php containing suspicious characters or patterns in the 'cidade' parameter.

grep 'cidade=[^a-zA-Z0-9 ]+' /var/log/apache2/access.log

• php / web: Review the source code of /editar-fornecedor.php for inadequate input validation or output encoding of the 'cidade' parameter. • generic web: Use curl to test the /editar-fornecedor.php endpoint with a simple XSS payload: curl 'http://example.com/editar-fornecedor.php?cidade=<script>alert("XSS")</script>' and observe the response for script execution.

1. 2024-11-30Disclosure

   disclosure

1. Réservé2024-11-29
2. Publiée2024-11-30
3. Modifiée2024-12-05
4. EPSS mis à jour2026-04-02

The primary mitigation for CVE-2024-11996 is to upgrade Farmacia to version 1.0.1 or later, which contains the fix. If upgrading is not immediately feasible, consider implementing input validation and output encoding on the 'cidade' parameter within the /editar-fornecedor.php file. This can help prevent the injection of malicious scripts. Web application firewalls (WAFs) configured to detect and block XSS attacks can also provide a temporary layer of protection. After upgrading, verify the fix by attempting to inject a simple XSS payload (e.g., <script>alert('XSS')</script>) through the 'cidade' parameter and confirming that it is properly sanitized or blocked.