CVE-2025-15130
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code through the addPost function in SyCms's administrative panel. It affects all versions up to commit a242ef2d194e8bb249dc175e7c49f2c1673ec921. Only unsupported installations are vulnerable since the project is no longer maintained.
💻 Affected Systems
- shanyu SyCms
⚠️ 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, ransomware deployment, or complete server takeover.
Likely Case
Unauthorized file upload leading to webshell installation and backdoor persistence on the server.
If Mitigated
Attack blocked at network perimeter or detected before successful exploitation.
🎯 Exploit Status
Exploit requires administrative credentials. Public disclosure increases weaponization likelihood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None
Restart Required: No
Instructions:
No official patch available. Project is no longer maintained. Migrate to alternative CMS.
🔧 Temporary Workarounds
Disable Administrative Panel
linuxRemove or restrict access to the vulnerable administrative interface
mv Application/Admin/Controller/FileManageController.class.php Application/Admin/Controller/FileManageController.class.php.disabled
Implement Web Application Firewall
allDeploy WAF rules to block code injection patterns
🧯 If You Can't Patch
- Isolate SyCms instance in separate network segment with strict egress filtering
- Implement multi-factor authentication for all administrative accounts
🔍 How to Verify
Check if Vulnerable:
Check if SyCms version is at or before commit a242ef2d194e8bb249dc175e7c49f2c1673ec921Check Version:
grep -r 'a242ef2d194e8bb249dc175e7c49f2c1673ec921' .git/HEAD || check commit historyVerify Fix Applied:
Verify administrative panel is disabled or replaced with alternative CMS📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to FileManageController
- Unexpected file uploads in upload directories
- Administrative login from unusual IPs
Network Indicators:
- HTTP requests with suspicious payloads to addPost endpoint
- Outbound connections from webserver to unknown destinations
SIEM Query:
source="web_logs" AND uri="/admin/filemanage/addpost" AND (payload="system(" OR payload="exec(" OR payload="shell_exec(")