CVE-2024-11996: XSS in Farmacia 1.0

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.

1. Reserved2024-11-29
2. Published2024-11-30
3. Modified2024-12-05
4. EPSS updated2026-04-02

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.