CVE-2025-68278
📋 TL;DR
This vulnerability allows attackers who can control markdown file content (like blog posts) to execute arbitrary code on systems running vulnerable versions of TinaCMS. It affects users of tinacms prior to version 3.1.1 who process untrusted markdown content. The issue stems from insecure usage of the gray-matter package.
💻 Affected Systems
- tinacms
- @tinacms/cli
- @tinacms/graphql
⚠️ 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 with remote code execution leading to data theft, service disruption, or lateral movement within the network.
Likely Case
Attackers with content creation/modification privileges can execute arbitrary code on the server hosting TinaCMS.
If Mitigated
Limited impact if only trusted users can create/modify content and proper input validation is implemented.
🎯 Exploit Status
Exploitation requires ability to modify markdown content. Gray-matter package vulnerabilities are well-known and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: tinacms 3.1.1, @tinacms/cli 2.0.4, @tinacms/graphql 2.0.3
Vendor Advisory: https://github.com/tinacms/tinacms/security/advisories/GHSA-529f-9qwm-9628
Restart Required: Yes
Instructions:
1. Update package.json to use patched versions. 2. Run 'npm update tinacms @tinacms/cli @tinacms/graphql'. 3. Restart the TinaCMS application/service.
🔧 Temporary Workarounds
Content Validation
allImplement strict validation/sanitization of markdown content before processing
Access Control
allRestrict markdown content creation/modification to trusted users only
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all markdown content
- Restrict content creation/modification permissions to minimal trusted users
🔍 How to Verify
Check if Vulnerable:
Check package.json for tinacms version < 3.1.1, @tinacms/cli < 2.0.4, or @tinacms/graphql < 2.0.3Check Version:
npm list tinacms @tinacms/cli @tinacms/graphqlVerify Fix Applied:
Verify package.json shows tinacms >= 3.1.1, @tinacms/cli >= 2.0.4, and @tinacms/graphql >= 2.0.3📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from TinaCMS context
- Errors in gray-matter parsing
- Unexpected file system access
Network Indicators:
- Outbound connections from TinaCMS to unexpected destinations
SIEM Query:
process.name:tina* AND (process.cmdline:*gray-matter* OR process.cmdline:*eval* OR process.cmdline:*exec*)