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How the CVE Works
CVE-2025-23209 is a critical vulnerability in Craft CMS that allows remote code execution (RCE) under specific conditions. The flaw arises when an attacker gains access to the `/updater/restore-db` endpoint by exploiting improper input validation. By manipulating the `/storage/backups` folder, a malicious actor can craft a specially designed request to execute arbitrary CLI commands on the server. This bypasses security restrictions, leading to full system compromise if exploited successfully. The issue was patched in versions 4.16.3 and 5.8.4.
DailyCVE Form
Platform: Craft CMS
Version: 4.13.8-4.16.2, 5.5.8-5.8.3
Vulnerability: Remote Code Execution
Severity: Critical
Date: Aug 8, 2025
Prediction: Patch expected by Aug 15, 2025
What Undercode Say
curl -X POST http://target-site.com/updater/restore-db --data "malicious_payload"
// Example exploit payload exec($_POST['cmd']);
How Exploit
- Craft malicious backup file in
/storage/backups. - Send manipulated request to
/updater/restore-db. - Execute arbitrary OS commands.
Protection from this CVE
- Update to Craft CMS 4.16.3 or 5.8.4.
- Restrict access to
/updater/restore-db. - Secure `/storage/backups` directory permissions.
Impact
- Full server compromise.
- Unauthorized data access.
- Malware deployment.
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Sources:
Reported By: github.com
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