CVE-2025-25784
📋 TL;DR
An arbitrary file upload vulnerability in Jizhicms v2.5.4 allows attackers to upload malicious Zip files containing PHP code, which can be executed on the server. This leads to remote code execution (RCE), potentially giving attackers full control over affected systems. All users running Jizhicms v2.5.4 are affected.
💻 Affected Systems
- Jizhicms
📦 What is this software?
Jizhicms by Jizhicms
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise allowing attackers to execute arbitrary commands, steal data, install backdoors, pivot to internal networks, and maintain persistent access.
Likely Case
Attackers upload web shells to gain administrative access, deface websites, exfiltrate sensitive data, or use the server for cryptocurrency mining or DDoS attacks.
If Mitigated
With proper file upload restrictions and web application firewalls, exploitation attempts are blocked, limiting impact to failed upload attempts.
🎯 Exploit Status
The vulnerability requires uploading a crafted Zip file. Public references suggest exploitation details are available, making weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Check for official patches from Jizhicms developers. 2. If no patch exists, consider upgrading to a newer version if available. 3. Apply workarounds immediately.
🔧 Temporary Workarounds
Restrict File Uploads
allDisable or restrict file upload functionality in Jizhicms configuration.
Edit Jizhicms configuration to disable file uploads or restrict to specific file types
Web Application Firewall Rules
allImplement WAF rules to block malicious file uploads and Zip file exploitation attempts.
Configure WAF to block requests containing Zip files or specific upload patterns
🧯 If You Can't Patch
- Isolate the Jizhicms instance in a restricted network segment with no internet access
- Implement strict file upload validation and sanitization at the application level
🔍 How to Verify
Check if Vulnerable:
Check if running Jizhicms v2.5.4 by examining version files or configuration. Test file upload functionality with controlled Zip files.Check Version:
Check Jizhicms version in configuration files or admin panelVerify Fix Applied:
After applying workarounds, attempt to upload a test Zip file and verify it is blocked or properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to TemplateController.php
- Zip file uploads followed by PHP file execution
- Multiple failed upload attempts
Network Indicators:
- HTTP POST requests with Zip file uploads to vulnerable endpoints
- Unusual outbound connections from web server
SIEM Query:
source="web_logs" AND (uri="/TemplateController.php" OR file_upload="*.zip")