CVE-2026-24323
📋 TL;DR
This CVE describes a reflected cross-site scripting (XSS) vulnerability in BSP applications where unauthenticated attackers can inject malicious scripts via URL parameters. When victims click crafted links, the scripts execute in their browsers, potentially stealing session cookies or performing actions as the user. This affects any BSP application deployments with insufficient input sanitization.
💻 Affected Systems
- BSP applications
📦 What is this software?
Erp by Sap
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, hijack accounts, perform actions as authenticated users, or redirect to phishing sites.
Likely Case
Attackers would steal user session cookies to impersonate victims, potentially accessing sensitive data within the application.
If Mitigated
With proper input validation and output encoding, the vulnerability would be neutralized with no impact.
🎯 Exploit Status
Exploitation requires crafting malicious URLs and convincing victims to click them. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to SAP Note 3678417 for specific patch information
Vendor Advisory: https://me.sap.com/notes/3678417
Restart Required: Yes
Instructions:
1. Review SAP Note 3678417 for your specific BSP application. 2. Apply the recommended security patch from SAP. 3. Restart the affected application services. 4. Verify the fix by testing URL parameter sanitization.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to sanitize all URL parameters before processing
Implementation varies by application framework - add parameter validation logic
Content Security Policy
allImplement CSP headers to restrict script execution sources
Add header: Content-Security-Policy: script-src 'self'
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block malicious URL patterns
- Educate users about phishing risks and suspicious links
🔍 How to Verify
Check if Vulnerable:
Test URL parameters with script payloads like <script>alert('XSS')</script> and check if they executeCheck Version:
Check application version against patched versions in SAP Note 3678417Verify Fix Applied:
Retest with same XSS payloads after patching - scripts should not execute and should be properly encoded📡 Detection & Monitoring
Log Indicators:
- Unusual URL parameters containing script tags or JavaScript code
- Multiple failed XSS attempts
Network Indicators:
- HTTP requests with suspicious parameters containing script elements
- URLs with encoded script payloads
SIEM Query:
web.url:*<script* OR web.url:*javascript:*