CVE-2021-47844
📋 TL;DR
Xmind 2020 contains a persistent cross-site scripting (XSS) vulnerability that allows attackers to embed malicious JavaScript in mind mapping files or custom headers. When users open these crafted files, the JavaScript executes system commands, enabling remote code execution through mouse interactions. This affects all users of Xmind 2020 who open untrusted mind map files.
💻 Affected Systems
- Xmind
⚠️ 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
Full system compromise through remote code execution, allowing attackers to install malware, steal data, or pivot to other systems.
Likely Case
Limited code execution in user context, potentially leading to data theft, privilege escalation, or further malware deployment.
If Mitigated
No impact if users only open trusted files from verified sources and have proper endpoint protection.
🎯 Exploit Status
Exploit requires user interaction to open malicious file. Proof-of-concept available on Exploit-DB.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Xmind 2021 or later (vulnerability fixed in subsequent releases)
Vendor Advisory: https://www.xmind.net/
Restart Required: Yes
Instructions:
1. Download latest Xmind version from official website. 2. Uninstall old version. 3. Install new version. 4. Restart system.
🔧 Temporary Workarounds
Disable JavaScript execution in Xmind
allConfigure Xmind to disable JavaScript execution in files (if supported in settings)
Use file integrity monitoring
allMonitor for suspicious .xmind file modifications or creations
🧯 If You Can't Patch
- Only open Xmind files from trusted, verified sources
- Use application whitelisting to restrict Xmind execution to specific directories
🔍 How to Verify
Check if Vulnerable:
Check Xmind version - if it's Xmind 2020, it's vulnerable. Test with known malicious .xmind file (not recommended in production).Check Version:
On Windows: Check Help > About in Xmind. On macOS: Xmind > About Xmind. On Linux: Check application info or package manager.Verify Fix Applied:
Verify Xmind version is 2021 or later. Test opening a known malicious .xmind file to confirm no code execution.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from Xmind.exe
- Suspicious file opens of .xmind files from untrusted sources
Network Indicators:
- Downloads of .xmind files from unknown domains
- Outbound connections from Xmind process to suspicious IPs
SIEM Query:
Process Creation where Image contains 'xmind' AND CommandLine contains suspicious patterns OR File Creation where FileName ends with '.xmind' from untrusted sources