CVE-2025-41104
📋 TL;DR
An HTML injection vulnerability in Fairsketch's RISE CRM Framework allows attackers to inject malicious HTML code via the 'custom_field_1' parameter in POST requests. This affects users of RISE CRM Framework v3.8.1 who have the vulnerable endpoint accessible.
💻 Affected Systems
- Fairsketch RISE CRM Framework
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could inject malicious scripts leading to session hijacking, credential theft, or complete account takeover through cross-site scripting attacks.
Likely Case
Attackers inject phishing forms or deface content to trick users into revealing credentials or sensitive information.
If Mitigated
With proper input validation and output encoding, the injected HTML would be rendered harmless as plain text.
🎯 Exploit Status
Exploitation requires sending a crafted POST request with HTML payload in the 'custom_field_1' parameter.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Monitor vendor for security updates. 2. Apply input validation and output encoding to the 'custom_field_1' parameter. 3. Sanitize all user inputs before processing.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject or sanitize HTML content in the 'custom_field_1' parameter.
WAF Rule
allConfigure web application firewall to block requests containing HTML/script tags in the 'custom_field_1' parameter.
🧯 If You Can't Patch
- Restrict access to the '/estimate_requests/save_estimate_request' endpoint to trusted users only.
- Implement Content Security Policy (CSP) headers to mitigate potential XSS impact.
🔍 How to Verify
Check if Vulnerable:
Send a POST request to '/estimate_requests/save_estimate_request' with HTML payload in 'custom_field_1' parameter and check if HTML renders.Check Version:
Check RISE CRM Framework version in admin panel or configuration files.Verify Fix Applied:
Test the same payload after fixes; HTML should be displayed as plain text, not executed.📡 Detection & Monitoring
Log Indicators:
- POST requests to '/estimate_requests/save_estimate_request' with HTML tags in parameters
- Unusual HTML content in custom_field_1 parameter
Network Indicators:
- HTTP POST requests containing script tags or HTML entities in custom_field_1 parameter
SIEM Query:
http.method:POST AND http.uri:"/estimate_requests/save_estimate_request" AND http.param.custom_field_1:*<*