CVE-2025-8256
BaseFortify
Publication date: 2025-07-28
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| fabian | online_ordering_system | 1.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-434 | The product allows the upload or transfer of dangerous file types that are automatically processed within its environment. |
| CWE-284 | The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-8256 is a critical vulnerability in the Online Ordering System 1.0, specifically in the /admin/product.php file. It arises from improper handling of the 'image' argument, allowing attackers to upload malicious PHP scripts by bypassing file type and content validation. Attackers can upload webshells like AntSword, which enable them to remotely execute arbitrary system commands, browse the file system, and steal sensitive data. This happens because the system does not restrict file extensions, does not verify MIME types, and stores uploaded files in web-accessible directories without execution restrictions. [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability can lead to full system compromise. Attackers can remotely upload malicious scripts and gain control over the affected system, allowing them to execute arbitrary commands, access and steal sensitive data such as database configuration and user information, escalate privileges, move laterally within the network, and maintain persistence by uploading additional backdoors. The exploit is easy to perform remotely without authentication, making the impact severe. [1, 2, 3]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection can be performed by monitoring for suspicious file uploads and web requests. Specifically, look for POST requests to /admin/product.php that contain multipart/form-data payloads uploading PHP files disguised as images. Commands to detect such activity include using web server logs to grep for uploads of .php files or suspicious POST parameters. For example, on a Linux server, you can run: 1) grep -i 'POST /admin/product.php' /var/log/apache2/access.log | grep -E '\.php' 2) grep -i 'eval(base64_decode' /var/log/apache2/access.log 3) Use intrusion detection systems or WAF logs to identify payloads containing 'eval(base64_decode' or POST parameters starting with 'a=ZXZ' (Base64 for 'eval'). Additionally, monitoring for new or modified PHP files in web-accessible directories (e.g., /uploads/) can help detect exploitation. Endpoint Detection and Response (EDR) tools can also be used to monitor PHP execution in upload directories. [3, 2]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include: 1) Blocking uploads of PHP scripts via web server configuration, for example, in Apache use: <FilesMatch "\.(php|php3|php5|phtml)$"> Require all denied </FilesMatch> 2) Implement Web Application Firewall (WAF) rules to detect and block AntSword-specific payloads, such as those containing 'eval(base64_decode' or POST parameters starting with 'a=ZXZ'. 3) Restrict execution permissions in the upload directories by setting them as non-executable to prevent PHP execution. 4) Monitor and log suspicious requests containing dangerous functions like 'eval' and 'base64_decode'. 5) Consider replacing the affected product with an alternative solution as no patches or fixes are currently available. [3, 2]