CVE-2025-41106
📋 TL;DR
This CVE describes an HTML injection vulnerability in Fairsketch's RISE CRM Framework v3.8.1. Attackers can inject malicious HTML code via the 'first_name' parameter in POST requests to '/clients/save_contact/', potentially leading to cross-site scripting attacks. Organizations using this specific version of RISE CRM are affected.
💻 Affected Systems
- Fairsketch RISE CRM Framework
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full account takeover through session hijacking, credential theft via phishing pages, or complete client data compromise if combined with other vulnerabilities.
Likely Case
Limited defacement, phishing attacks targeting CRM users, or stealing session cookies from authenticated users.
If Mitigated
Minimal impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Requires ability to send POST requests to the vulnerable endpoint, which typically requires some level of access or authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-fairsketchs-rise-crm-framework
Restart Required: No
Instructions:
1. Monitor vendor for patch release. 2. Apply patch when available. 3. Test in non-production environment first. 4. Deploy to production.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize HTML tags in the 'first_name' parameter
WAF Rule
allDeploy web application firewall rules to block HTML injection patterns in POST parameters
🧯 If You Can't Patch
- Restrict access to '/clients/save_contact/' endpoint to trusted IP addresses only
- Implement Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Test by sending POST request to '/clients/save_contact/' with HTML payload in 'first_name' parameter and check if rendered unsanitizedCheck Version:
Check CRM admin panel or configuration files for version informationVerify Fix Applied:
Repeat vulnerability test after applying fix - HTML should be properly encoded or rejected📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to '/clients/save_contact/' with HTML tags in parameters
- Multiple failed validation attempts
Network Indicators:
- HTML/script patterns in POST body parameters
- Unusual content-type headers
SIEM Query:
source="web_server" AND uri="/clients/save_contact/" AND (param="first_name" CONTAINS "<" OR param="first_name" CONTAINS ">")