CVE-2025-49430: FWDesign Ultimate Video Player SSRF Flaw

CVE-2025-49430 Overview

A Server-Side Request Forgery (SSRF) vulnerability has been identified in the FWDesign Ultimate Video Player WordPress plugin (fwduvp). This vulnerability allows attackers to manipulate server-side requests, potentially enabling unauthorized access to internal resources, sensitive data exfiltration, or exploitation of internal services that would otherwise be inaccessible from external networks.

Critical Impact

This SSRF vulnerability enables attackers to abuse server-side functionality to make arbitrary HTTP requests to internal or external systems, potentially bypassing firewall controls and accessing restricted network resources.

Affected Products

• FWDesign Ultimate Video Player WordPress plugin versions through 10.1
• WordPress installations utilizing the fwduvp plugin

Discovery Timeline

• 2025-09-09 - CVE-2025-49430 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-49430

Vulnerability Analysis

This vulnerability is classified as CWE-918: Server-Side Request Forgery (SSRF). The Ultimate Video Player plugin for WordPress contains a flaw that allows attackers to craft malicious requests that the server will execute on their behalf. SSRF vulnerabilities are particularly dangerous in cloud environments where internal metadata services and other sensitive endpoints may be accessible from the compromised server.

The vulnerability exists within the fwduvp plugin component, which handles video player functionality. When the plugin processes certain user-supplied input without proper validation, it can be coerced into making HTTP requests to attacker-specified destinations. This allows an attacker to probe internal network infrastructure, access internal APIs, or potentially interact with cloud provider metadata services.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and sanitization of user-controlled URL parameters within the Ultimate Video Player plugin. The plugin fails to properly restrict the destinations of server-initiated HTTP requests, allowing attackers to specify arbitrary URLs including internal network addresses and localhost endpoints.

Attack Vector

An attacker can exploit this vulnerability by sending specially crafted requests to the vulnerable WordPress installation. The attack typically involves:

1. Identifying an endpoint in the Ultimate Video Player plugin that accepts URL parameters
2. Crafting a malicious URL pointing to internal resources (e.g., http://127.0.0.1/admin, http://169.254.169.254/ for cloud metadata)
3. Submitting the request through the vulnerable plugin functionality
4. The server processes the request and returns data from the internal resource to the attacker

Common exploitation targets include internal administrative interfaces, cloud provider metadata endpoints (AWS, GCP, Azure), internal databases, and other services accessible only from within the network perimeter.

Detection Methods for CVE-2025-49430

Indicators of Compromise

• Unusual outbound HTTP requests from the WordPress server to internal IP ranges (10.x.x.x, 172.16.x.x-172.31.x.x, 192.168.x.x)
• HTTP requests to cloud metadata endpoints such as 169.254.169.254 or metadata.google.internal
• Unexpected server-side connections to localhost addresses (127.0.0.1, ::1)
• Log entries showing the fwduvp plugin making requests to unusual or internal destinations

Detection Strategies

• Monitor web server logs for requests containing internal IP addresses or metadata endpoint patterns in URL parameters
• Implement network-level monitoring to detect outbound connections from web servers to internal infrastructure
• Deploy Web Application Firewall (WAF) rules to detect and block SSRF patterns in incoming requests
• Review WordPress plugin activity logs for suspicious Ultimate Video Player operations

Monitoring Recommendations

• Configure alerts for any outbound traffic from WordPress servers to private IP address ranges
• Implement egress filtering to restrict server-initiated connections to approved destinations
• Enable detailed logging for the Ultimate Video Player plugin and monitor for anomalous request patterns
• Deploy SentinelOne Singularity to monitor for behavioral indicators of SSRF exploitation attempts

How to Mitigate CVE-2025-49430

Immediate Actions Required

• Deactivate and remove the Ultimate Video Player (fwduvp) plugin if not essential to operations until a patched version is available
• Implement WAF rules to block SSRF attack patterns targeting the plugin
• Configure network egress filtering to prevent the WordPress server from accessing internal resources
• Review server logs for evidence of prior exploitation attempts

Patch Information

Consult the Patchstack WordPress Vulnerability database for the latest patch availability and remediation guidance from the vendor. Update to a patched version of the Ultimate Video Player plugin as soon as one becomes available.

Workarounds

• Implement strict URL allowlisting to restrict which external resources the plugin can access
• Deploy a Web Application Firewall with SSRF-specific rulesets to filter malicious requests
• Configure server-level network restrictions to block outbound connections to internal IP ranges and cloud metadata endpoints
• Consider using a reverse proxy with URL validation to sanitize requests before they reach the WordPress application

# Example WAF rule configuration to block internal IP access patterns
# Add to .htaccess or server configuration

# Block requests containing internal IP addresses in query strings
RewriteEngine On
RewriteCond %{QUERY_STRING} (127\.0\.0\.1|localhost|10\.\d+\.\d+\.\d+|172\.(1[6-9]|2[0-9]|3[0-1])\.\d+\.\d+|192\.168\.\d+\.\d+|169\.254\.\d+\.\d+) [NC]
RewriteRule ^(.*)$ - [F,L]