CVE-2025-15061
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Framelink Figma MCP Server installations without authentication. Attackers can exploit improper input validation in the fetchWithRetry method to execute system commands. All users running vulnerable versions of this software are affected.
💻 Affected Systems
- Framelink Figma MCP Server
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code with service account privileges, potentially leading to data theft, lateral movement, or ransomware deployment.
Likely Case
Remote code execution leading to unauthorized access, data exfiltration, or installation of backdoors on affected servers.
If Mitigated
Limited impact if proper network segmentation and least privilege controls are implemented, though RCE would still be possible.
🎯 Exploit Status
The vulnerability requires no authentication and has low exploitation complexity, making it highly attractive to attackers. Public exploit code may emerge soon.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub advisory for specific patched version
Vendor Advisory: https://github.com/GLips/Figma-Context-MCP/security/advisories/GHSA-gxw4-4fc5-9gr5
Restart Required: Yes
Instructions:
1. Review the GitHub security advisory. 2. Update to the latest patched version of Framelink Figma MCP Server. 3. Restart the service to apply the fix.
🔧 Temporary Workarounds
Network Isolation
allRestrict network access to the Figma MCP Server to only trusted sources
Use firewall rules to block external access: iptables -A INPUT -p tcp --dport [MCP_PORT] -s [TRUSTED_IPS] -j ACCEPT
iptables -A INPUT -p tcp --dport [MCP_PORT] -j DROP
Service Account Hardening
linuxRun the service with minimal privileges to limit potential damage
Create dedicated low-privilege user: sudo useradd -r -s /bin/false figma-mcp
sudo chown -R figma-mcp:figma-mcp /path/to/mcp/server
🧯 If You Can't Patch
- Immediately isolate the affected server from the internet and restrict internal network access
- Implement strict network monitoring and consider taking the service offline until patching is possible
🔍 How to Verify
Check if Vulnerable:
Check if you're running a vulnerable version by comparing your installed version against the patched version mentioned in the GitHub advisoryCheck Version:
Check the package.json or server startup logs for version informationVerify Fix Applied:
Verify you have updated to the patched version and test that the fetchWithRetry functionality works without allowing command injection📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Unexpected process spawns from the Figma MCP service account
- Failed authentication attempts followed by successful command execution
Network Indicators:
- Unusual outbound connections from the MCP server
- Traffic to unexpected ports or IP addresses
- Large data transfers from the server
SIEM Query:
source="figma-mcp.log" AND ("fetchWithRetry" OR "command" OR "exec") AND NOT user="expected_user"