CVE-2025-11655
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary SVG files without proper restrictions in Total.js Flow. It affects all deployments using versions up to commit 673ef9144dd25d4f4fd4fdfda5af27f230198924. The exploit is publicly available and can be executed remotely.
💻 Affected Systems
- Total.js Flow
⚠️ 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
Remote code execution or server compromise through malicious SVG file upload leading to complete system takeover.
Likely Case
File system manipulation, denial of service, or data exfiltration through uploaded malicious files.
If Mitigated
Limited impact with proper file upload validation and restricted execution environments.
🎯 Exploit Status
Exploit has been released publicly and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after commit 673ef9144dd25d4f4fd4fdfda5af27f230198924
Vendor Advisory: None - vendor did not respond to disclosure
Restart Required: No
Instructions:
1. Update Total.js Flow to latest version after the fix commit. 2. Verify the update includes proper SVG file validation. 3. Test SVG upload functionality.
🔧 Temporary Workarounds
Disable SVG upload functionality
allTemporarily disable SVG file uploads in the application configuration
Modify application configuration to reject SVG file uploads
Implement file type validation
allAdd server-side validation to restrict uploaded file types
Implement MIME type and file extension validation for all uploads
🧯 If You Can't Patch
- Implement web application firewall rules to block SVG file uploads
- Isolate the application in a restricted network segment
🔍 How to Verify
Check if Vulnerable:
Check if your Total.js Flow version includes commit 673ef9144dd25d4f4fd4fdfda5af27f230198924 or earlierCheck Version:
Check git commit history or version metadata in your Total.js Flow deploymentVerify Fix Applied:
Test SVG file upload with malicious content - it should be rejected📡 Detection & Monitoring
Log Indicators:
- Unusual SVG file uploads
- Large number of file upload attempts
- Failed file validation attempts
Network Indicators:
- POST requests to file upload endpoints with SVG content
- Unusual file upload patterns
SIEM Query:
source="application_logs" AND (message="SVG upload" OR message="file upload") AND status="success"