itsourcecode 学生管理系统 Add Student add_student 跨站脚本漏洞

Successful exploitation of CVE-2026-2939 enables an attacker to execute arbitrary JavaScript code within the context of a user's browser session. This can lead to various malicious actions, including session hijacking, phishing attacks, and defacement of the Student Management System. Sensitive student data, such as names, contact information, and academic records, could be exposed or modified. The remote nature of the vulnerability expands the potential attack surface, as attackers don't require local access to the system. The availability of a public proof-of-concept significantly lowers the barrier to entry for malicious actors.

Educational institutions and organizations utilizing itsourcecode Student Management System version 1.0 are at risk. Specifically, those with publicly accessible student registration forms or profile update pages are particularly vulnerable. Shared hosting environments where multiple applications share the same server resources could also be impacted, as a successful exploit could potentially compromise other applications on the same server.

• php / web: Examine access logs for suspicious requests targeting /add_student/ with unusual parameters. Use grep to search for potentially malicious JavaScript code within the application's source code, particularly around input handling functions.

grep -r 'alert\(' /var/www/html/itsourcecode/add_student

• generic web: Use curl to test the /add_student/ endpoint with various payloads designed to trigger XSS. Check response headers for unexpected content or scripting tags.

curl -X POST -d '<script>alert("XSS")</script>' http://example.com/add_student/

1. 2026-02-22Disclosure

   disclosure

1. 已保留2026-02-21
2. 发布日期2026-02-22
3. 修改日期2026-02-25
4. EPSS 更新日期2026-03-23

The primary mitigation for CVE-2026-2939 is to upgrade to a patched version of itsourcecode Student Management System. Since a fixed version is not specified, immediate action is crucial. As a temporary workaround, implement strict input validation and output encoding on all user-supplied data, particularly within the /add_student/ module. Employ a Web Application Firewall (WAF) with XSS protection rules to filter malicious requests. Regularly scan the application for XSS vulnerabilities using automated tools. After implementing these mitigations, thoroughly test the application to ensure that the vulnerability has been effectively addressed.