CVE-2024-22819
📋 TL;DR
FlyCms v1.0 contains a Cross-Site Request Forgery (CSRF) vulnerability in the email template update endpoint. This allows attackers to trick authenticated administrators into performing unauthorized actions, potentially modifying email templates or other system configurations. Only administrators with access to the affected endpoint are vulnerable.
💻 Affected Systems
- FlyCms
📦 What is this software?
Flycms by Flycms Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify email templates to include malicious content, potentially leading to phishing campaigns, credential theft, or malware distribution from the legitimate domain.
Likely Case
Unauthorized modification of email templates, potentially disrupting legitimate email communications or inserting malicious links.
If Mitigated
With proper CSRF protections, the vulnerability would be prevented as requests would require valid anti-CSRF tokens.
🎯 Exploit Status
CSRF attacks typically require social engineering to trick authenticated users into clicking malicious links.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider implementing CSRF protection manually or upgrading to a newer version if available.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to the email template update form and validate them on the server side.
Restrict Access
allImplement IP whitelisting or additional authentication for the /system/email/email_templets_update endpoint.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block CSRF attempts
- Educate administrators about phishing risks and implement strict access controls
🔍 How to Verify
Check if Vulnerable:
Check if the /system/email/email_templets_update endpoint lacks CSRF token validation by inspecting the form or testing with a CSRF PoC.Check Version:
Check FlyCms version in admin panel or configuration files.Verify Fix Applied:
Verify that CSRF tokens are required and validated for POST requests to the vulnerable endpoint.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /system/email/email_templets_update from unexpected sources
- Multiple failed CSRF token validations
Network Indicators:
- HTTP POST requests to the vulnerable endpoint without Referer header validation or CSRF tokens
SIEM Query:
source="web_server" AND (url="/system/email/email_templets_update" AND method="POST") AND NOT (user_agent contains "security_scanner")