CVE-2025-2249: SoJ SoundSlides WordPress Plugin RCE Flaw

CVE-2025-2249 Overview

CVE-2025-2249 affects the SoJ SoundSlides plugin for WordPress through version 1.2.2. The vulnerability stems from missing file type validation in the soj_soundslides_options_subpanel() function. Authenticated attackers with Contributor-level access or higher can upload arbitrary files to the affected site's server. Successful exploitation may lead to remote code execution on the underlying WordPress host.

The issue is classified under CWE-434 (Unrestricted Upload of File with Dangerous Type). Wordfence published a detailed advisory tracking the flaw across all plugin versions up to and including 1.2.2.

Critical Impact
Contributor-level WordPress users can upload PHP files through the plugin's options subpanel, enabling remote code execution and full site compromise.

Affected Products

SoJ SoundSlides plugin for WordPress, all versions up to and including 1.2.2
WordPress sites allowing Contributor-level or higher user registration
WordPress installations with the vulnerable plugin activated

Discovery Timeline

2025-03-29 - CVE-2025-2249 published to NVD
2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-2249

Vulnerability Analysis

The SoJ SoundSlides plugin exposes an administrative options handler named soj_soundslides_options_subpanel(). This function processes file uploads from authenticated WordPress users but omits server-side validation of the uploaded file's MIME type, extension, and content.

Because WordPress treats Contributor accounts as low-privilege content authors, the lack of upload validation effectively elevates any Contributor to a code execution position. An attacker authenticated as a Contributor can submit a PHP payload disguised as a plugin asset. The file is written to a web-accessible directory, allowing the attacker to request it directly and execute arbitrary code under the web server user.

The vulnerability is exploitable over the network with low attack complexity and requires only low-level privileges. No user interaction is required after the attacker obtains a Contributor account.

Root Cause

The root cause is missing input validation on the file upload path inside soj_soundslides_options_subpanel(). The function trusts the file submitted through the plugin's options interface without enforcing an allowlist of permitted file extensions or verifying MIME content. Plugin source code is available through the WordPress Plugin Repository.

Attack Vector

An attacker first obtains a Contributor or higher account through self-registration, social engineering, or credential reuse. The attacker then submits a crafted upload request to the SoundSlides options subpanel containing a PHP web shell. After upload, the attacker requests the file's URL directly to trigger execution and establish persistent access. See the Wordfence Vulnerability Report for additional technical context.

Detection Methods for CVE-2025-2249

Indicators of Compromise

Unexpected .php, .phtml, or .phar files within the wp-content/plugins/soj-soundslides/ directory or associated upload paths
WordPress audit log entries showing Contributor accounts accessing plugin options pages
Outbound network connections initiated by the PHP-FPM or web server process to unfamiliar hosts
New administrator accounts or modified wp_options entries following a Contributor login

Detection Strategies

Monitor the WordPress filesystem for new executable files written under plugin directories by low-privilege users
Inspect HTTP request logs for POST requests to plugin admin endpoints originating from Contributor-role sessions
Alert on web server processes spawning shells, curl, wget, or other unexpected child processes
Correlate WordPress user activity logs with file creation events on disk

Monitoring Recommendations

Enable file integrity monitoring on the entire WordPress installation directory
Forward web server access logs and WordPress audit events to a centralized SIEM for analysis
Track plugin version inventory across all hosted WordPress sites to identify vulnerable installations
Review user role assignments and remove unused Contributor or higher accounts

How to Mitigate CVE-2025-2249

Immediate Actions Required

Deactivate and remove the SoJ SoundSlides plugin until a patched version is confirmed available
Audit all WordPress user accounts at Contributor level and above, removing accounts that are not actively required
Scan the wp-content/ directory for unauthorized PHP files and remove any identified web shells
Rotate WordPress administrator credentials and database passwords if compromise is suspected

Patch Information

At the time of NVD publication, no patched release beyond version 1.2.2 was identified in the available references. Site operators should monitor the WordPress Plugin Repository and the Wordfence advisory for an official fix and apply it immediately upon release.

Workarounds

Disable user registration or restrict new account creation to trusted administrators only
Apply a web application firewall rule blocking POST requests to the plugin's options subpanel
Configure the web server to deny PHP execution within wp-content/uploads/ and plugin asset directories
Restrict Contributor role capabilities using a role management plugin to prevent access to the SoundSlides options page

bash

# Apache: deny PHP execution under wp-content/uploads
<Directory "/var/www/html/wp-content/uploads">
    <FilesMatch "\.(php|phtml|phar)$">
        Require all denied
    </FilesMatch>
</Directory>

# Nginx equivalent
location ~* /wp-content/uploads/.*\.(php|phtml|phar)$ {
    deny all;
    return 403;
}