CVE-2024-30855
📋 TL;DR
DedeCMS v5.7 contains a CSRF vulnerability in the makehtml_list_action.php file that allows attackers to trick authenticated administrators into performing unauthorized actions. This affects all DedeCMS v5.7 installations with administrative interfaces accessible to users. Attackers can exploit this to modify system settings or content without the admin's knowledge.
💻 Affected Systems
- DedeCMS
📦 What is this software?
Dedecms by Dedecms
⚠️ Risk & Real-World Impact
Worst Case
Attackers could completely compromise the CMS by tricking an admin into executing malicious requests that modify system configurations, inject backdoors, or delete critical content.
Likely Case
Attackers would typically use this to modify website content, inject malicious scripts, or change administrative settings to maintain persistence.
If Mitigated
With proper CSRF protections and admin awareness, the risk is significantly reduced as attacks require user interaction and authentication.
🎯 Exploit Status
Exploitation requires the victim to be authenticated as an administrator and to visit a malicious page while logged in.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Apply workarounds or upgrade to a newer version if available.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF token validation to makehtml_list_action.php and all administrative endpoints
Edit /src/dede/makehtml_list_action.php to include CSRF token generation and validation
Restrict Administrative Access
allLimit access to administrative interfaces to trusted IP addresses only
Add IP-based restrictions in .htaccess or web server configuration for /src/dede/ directory
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and require re-authentication for sensitive actions
- Use browser extensions that block CSRF attempts and educate administrators about phishing risks
🔍 How to Verify
Check if Vulnerable:
Check if /src/dede/makehtml_list_action.php exists and lacks CSRF token validation in the source codeCheck Version:
Check DedeCMS version in system configuration or admin panelVerify Fix Applied:
Verify that CSRF tokens are properly implemented and validated in the affected file📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to makehtml_list_action.php from different sessions in short time
- Unusual administrative actions without corresponding user login patterns
Network Indicators:
- HTTP requests to makehtml_list_action.php with unexpected referer headers
- CSRF attack patterns in web application firewall logs
SIEM Query:
source="web_logs" AND uri="/src/dede/makehtml_list_action.php" AND method="POST" AND NOT referer CONTAINS "expected_domain"