CVE-2026-4576 describes a cross-site scripting (XSS) vulnerability discovered in Exam Form Submission version 1.0. This flaw allows attackers to inject malicious scripts into the application, potentially leading to session hijacking or defacement. The vulnerability resides within the /admin/update_s5.php file and is triggered by manipulating the 'sname' argument. The vulnerability has been publicly disclosed.
Successful exploitation of CVE-2026-4576 allows an attacker to execute arbitrary JavaScript code within the context of a user's browser session. This can be leveraged to steal sensitive information, such as session cookies, redirect users to malicious websites, or modify the content displayed to the user. The impact is particularly severe for administrative users, as their accounts could be compromised, granting the attacker control over the entire application. The remote nature of the vulnerability means it can be exploited from anywhere with network access to the application.
CVE-2026-4576 has been publicly disclosed, increasing the likelihood of exploitation. The vulnerability is relatively simple to exploit, making it accessible to a wide range of attackers. No known active campaigns targeting this specific vulnerability have been reported as of the publication date, but the public availability of the exploit increases the risk. The CVSS score of 2.4 indicates a low severity, but the potential impact on administrative accounts warrants attention.
Exploit Status
EPSS
0.03% (9% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-4576 is to sanitize all user-supplied input, particularly the 'sname' parameter in /admin/update_s5.php. This involves encoding or escaping any potentially malicious characters before they are rendered in the browser. Consider implementing a Web Application Firewall (WAF) with XSS filtering rules to provide an additional layer of defense. Regularly review and update input validation routines to prevent similar vulnerabilities from being introduced in the future. While upgrading to a patched version is the ideal solution, it may not be immediately feasible. Focus on input sanitization as an immediate workaround.
Update to a patched version or apply the necessary security measures to prevent the injection of malicious code through the 'sname' parameter. Validating and sanitizing user input is crucial to prevent XSS attacks.
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CVE-2026-4576 is a cross-site scripting (XSS) vulnerability in Exam Form Submission version 1.0, affecting the /admin/update_s5.php file. It allows attackers to inject malicious scripts via the 'sname' parameter.
If you are running Exam Form Submission version 1.0, you are potentially affected by this vulnerability. Assess your input sanitization practices to determine your level of risk.
The recommended fix is to sanitize all user-supplied input, particularly the 'sname' parameter in /admin/update_s5.php. Implement robust input validation and encoding techniques.
While no active campaigns have been confirmed, the vulnerability has been publicly disclosed, increasing the risk of exploitation. Continuous monitoring is advised.
Refer to the code-projects website or relevant security forums for the official advisory regarding CVE-2026-4576.
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