CVE-2023-41519

6.1 MEDIUM

📋 TL;DR

This vulnerability allows attackers to inject malicious scripts via the sessionName parameter in createSessionTerm.php, which could execute arbitrary JavaScript in users' browsers. It affects Student Attendance Management System v1 users, potentially compromising their sessions or stealing credentials.

💻 Affected Systems

Products:
  • Student Attendance Management System
Versions: v1.0
Operating Systems: Any
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation; no special configuration is required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, hijack user sessions, deface the system, or redirect users to malicious sites, leading to complete system compromise.

🟠

Likely Case

Attackers inject malicious scripts to steal session cookies or credentials from users who access the vulnerable page, enabling account takeover.

🟢

If Mitigated

With proper input validation and output encoding, the impact is minimal as scripts are neutralized before execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires user interaction (e.g., visiting a crafted link) and knowledge of the vulnerable parameter.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown (check vendor for updates)

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Update to the latest version if available. 2. If no patch, manually sanitize input in createSessionTerm.php by implementing proper validation and output encoding for the sessionName parameter.

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement server-side validation to reject or sanitize malicious input in the sessionName parameter.

Content Security Policy (CSP)

all

Deploy a strict CSP header to mitigate script injection by restricting sources of executable scripts.

🧯 If You Can't Patch

  • Disable or restrict access to createSessionTerm.php if not essential.
  • Implement a web application firewall (WAF) with XSS protection rules.

🔍 How to Verify

Check if Vulnerable:

Test by injecting a harmless payload (e.g., <script>alert('test')</script>) into the sessionName parameter and check if it executes.

Check Version:

Check the system's version in its admin panel or configuration files.

Verify Fix Applied:

Re-test with the same payload; it should be sanitized or blocked without execution.

📡 Detection & Monitoring

Log Indicators:

  • Unusual or malicious strings in sessionName parameter logs, such as script tags or JavaScript code.

Network Indicators:

  • HTTP requests with suspicious payloads in the sessionName parameter.

SIEM Query:

source="web_logs" AND (sessionName CONTAINS "<script>" OR sessionName CONTAINS "javascript:")

🔗 References

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