CVE-2025-49432: Ultimate Video Player Auth Bypass Flaw

CVE-2025-49432 Overview

CVE-2025-49432 is a missing authorization vulnerability in the FWDesign Ultimate Video Player (fwduvp) plugin for WordPress. The flaw affects all versions up to and including 10.1. It stems from incorrectly configured access control security levels, allowing unauthenticated attackers to reach functionality that should require authorization. The issue is classified under CWE-862: Missing Authorization.

Critical Impact
Remote attackers can interact with restricted plugin functionality over the network without authentication, resulting in limited integrity impact on affected WordPress sites.

Affected Products

FWDesign Ultimate Video Player (fwduvp) plugin for WordPress
All versions from n/a through 10.1
WordPress sites running the vulnerable plugin

Discovery Timeline

2025-08-15 - CVE CVE-2025-49432 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-49432

Vulnerability Analysis

The vulnerability is a Broken Access Control issue in the Ultimate Video Player WordPress plugin. The plugin exposes functionality without properly verifying whether the requesting user holds the required capability or role. Attackers can send crafted HTTP requests to plugin endpoints and trigger actions that should be restricted to privileged users.

Because the attack occurs over the network with no authentication and no user interaction, exploitation is straightforward for anyone able to reach the target site. The impact is limited to integrity, meaning attackers can modify plugin-controlled data or state but cannot directly read confidential data or crash the site through this flaw alone.

Root Cause

The root cause is the absence of authorization checks on plugin actions, mapped to CWE-862: Missing Authorization. Handlers that perform state-changing operations do not call WordPress capability functions such as current_user_can() or verify nonces before executing privileged logic. As a result, access control decisions are effectively skipped at the entry point of vulnerable request handlers.

Attack Vector

An unauthenticated remote attacker sends an HTTP request to a vulnerable plugin endpoint on a WordPress site running Ultimate Video Player 10.1 or earlier. Because authorization is not enforced, the request is processed as if it came from an authorized user. The vulnerability requires no privileges, no user interaction, and low attack complexity. See the Patchstack advisory for additional technical context.

Detection Methods for CVE-2025-49432

Indicators of Compromise

Unauthenticated HTTP POST requests to admin-ajax.php referencing fwduvp plugin actions
Unexpected changes to Ultimate Video Player configuration, playlists, or media entries
Requests to plugin endpoints originating from unfamiliar IP addresses without a preceding authenticated session

Detection Strategies

Review WordPress and web server access logs for requests targeting fwduvp action names without associated authenticated session cookies
Compare current plugin settings against known-good baselines to detect unauthorized modifications
Alert on anomalous rates of requests to wp-admin/admin-ajax.php with plugin-specific action parameters

Monitoring Recommendations

Enable verbose logging for plugin AJAX and REST endpoints to capture request origin, action, and user context
Monitor for new administrative-style events performed with no authenticated user identifier
Track plugin version inventory across WordPress sites to identify hosts still running Ultimate Video Player 10.1 or earlier

How to Mitigate CVE-2025-49432

Immediate Actions Required

Identify all WordPress sites running the FWDesign Ultimate Video Player (fwduvp) plugin and record installed versions
Update Ultimate Video Player to a fixed version above 10.1 as soon as one is available from the vendor
If no patched version is available, deactivate and remove the plugin until a fix is released

Patch Information

Affected versions include all releases up to and including Ultimate Video Player 10.1. Administrators should consult the Patchstack advisory for the current patched release and upgrade guidance. Apply updates through the WordPress plugin dashboard or via automated update tooling.

Workarounds

Restrict access to wp-admin/admin-ajax.php and plugin REST routes using a web application firewall (WAF) rule that requires authenticated sessions
Temporarily disable the Ultimate Video Player plugin on production sites until an official patch is applied
Limit administrative panel exposure by IP allowlisting for management interfaces

bash

# Example: identify sites running the vulnerable plugin using WP-CLI
wp plugin list --name=fwduvp --fields=name,status,version

# Deactivate the plugin as a temporary mitigation
wp plugin deactivate fwduvp