CVE-2026-57710: WoowBot Pro Max File Upload Vulnerability

CVE-2026-57710 Overview

CVE-2026-57710 is an unrestricted file upload vulnerability [CWE-434] in the quantumcloud WoowBot Pro Max WordPress plugin. The flaw affects all versions of woowbot-pro-max up to and including 14.1.7. Authenticated attackers with low privileges can upload files of dangerous types to the target server. Successful exploitation leads to arbitrary code execution in the WordPress environment. The vulnerability carries a CVSS 3.1 score of 9.9 with a changed scope, indicating impact beyond the vulnerable component.

Critical Impact
Low-privileged authenticated users can upload malicious files, achieving remote code execution and full compromise of the affected WordPress site.

Affected Products

quantumcloud WoowBot Pro Max plugin for WordPress
All versions from initial release through 14.1.7
WordPress installations with the woowbot-pro-max plugin activated

Discovery Timeline

2026-07-13 - CVE-2026-57710 published to the National Vulnerability Database (NVD)
2026-07-13 - Last updated in NVD database

Technical Details for CVE-2026-57710

Vulnerability Analysis

The WoowBot Pro Max plugin exposes an upload handler that fails to validate the type, extension, or MIME content of files supplied by authenticated users. This condition is classified under [CWE-434] Unrestricted Upload of File with Dangerous Type. An attacker holding low-level credentials, such as a subscriber or customer account, can submit a crafted request that stores an executable PHP file inside the WordPress uploads directory.

Once the file is written to a web-accessible location, the attacker requests its URL and forces the PHP interpreter to execute the payload. Execution occurs in the security context of the web server process. The changed scope in the CVSS vector reflects that code execution inside the WordPress site can pivot to other tenants, databases, or hosted applications on the same server.

Root Cause

The root cause is missing server-side validation on the plugin's file upload endpoint. The handler does not enforce an allow-list of safe extensions, does not verify MIME type, and does not rename or sandbox uploaded files. Client-supplied filenames and content are accepted as-is and written under the WordPress wp-content/uploads tree.

Attack Vector

The attack vector is network-based over HTTP or HTTPS. An attacker authenticates against WordPress with any low-privileged account. The attacker then invokes the vulnerable plugin endpoint with a multipart request that contains a PHP webshell disguised through filename manipulation. After the server stores the file, the attacker issues a follow-up GET request to trigger execution and interact with the shell.

See the Patchstack Vulnerability Report for the vendor-tracked technical details.

Detection Methods for CVE-2026-57710

Indicators of Compromise

New PHP, .phtml, or .phar files present under wp-content/uploads/ with modification timestamps that correlate to plugin upload activity
Outbound HTTP requests originating from the WordPress host to unfamiliar command-and-control infrastructure shortly after file writes
WordPress user accounts with unusual activity followed by web shell access patterns in access logs

Detection Strategies

Inspect web server access logs for POST requests to WoowBot Pro Max plugin endpoints from low-privileged authenticated sessions
Alert on any PHP file written into the uploads directory tree, which should normally contain only static media
Correlate authenticated plugin activity with subsequent GET requests to freshly written files in the same upload path

Monitoring Recommendations

Enable file integrity monitoring on wp-content/uploads and wp-content/plugins/woowbot-pro-max to catch unauthorized writes
Forward WordPress and web server logs to a centralized analytics platform and retain them for post-incident review
Monitor for process launches spawned by the PHP-FPM or web server user, such as shell interpreters or network utilities

How to Mitigate CVE-2026-57710

Immediate Actions Required

Deactivate and remove the WoowBot Pro Max plugin until a patched release above 14.1.7 is installed
Audit all files under wp-content/uploads for PHP or other executable content and remove any unauthorized artifacts
Rotate WordPress administrator and database credentials if evidence of exploitation is present
Restrict registration and reduce the privileges granted to newly created accounts to limit the exploitable population

Patch Information

At the time of publication, the vendor advisory tracked by Patchstack lists all versions up to and including 14.1.7 as affected. Administrators should consult the Patchstack Vulnerability Report and the quantumcloud vendor page for a fixed release, then update through the WordPress plugin manager once available.

Workarounds

Deny PHP execution inside wp-content/uploads using a web server configuration rule that prevents interpreter handling of files in that directory
Place a web application firewall (WAF) rule in front of the plugin's upload endpoint to reject requests carrying script content or non-image MIME types
Enforce least privilege on WordPress roles and disable open user registration where it is not a business requirement

bash

# Apache: block PHP execution inside the WordPress uploads directory
# Place the following in wp-content/uploads/.htaccess
<FilesMatch "\.(php|phtml|phar|php7|php8)$">
    Require all denied
</FilesMatch>

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