CVE-2024-38707: WPDeveloper EmbedPress Auth Bypass Flaw

CVE-2024-38707 Overview

CVE-2024-38707 is a missing authorization vulnerability in the WPDeveloper EmbedPress plugin for WordPress. The flaw affects all versions up to and including 4.0.4. Authenticated users with low privileges can exploit incorrectly configured access control checks to perform actions restricted to higher-privileged roles. The issue is classified as [CWE-862: Missing Authorization]. The vulnerability carries a network attack vector with low complexity and requires only low-privileged authentication, making it accessible to any authenticated user on an affected WordPress site.

Critical Impact
Authenticated attackers with minimal privileges can bypass access controls in EmbedPress, potentially compromising site confidentiality, integrity, and availability.

Affected Products

WPDeveloper EmbedPress plugin for WordPress
All versions from n/a through 4.0.4
WordPress sites with EmbedPress installed and any authenticated user role available

Discovery Timeline

2024-11-01 - CVE-2024-38707 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-38707

Vulnerability Analysis

EmbedPress is a WordPress plugin used to embed third-party media, documents, and content within pages and posts. The plugin exposes functionality intended for administrators or editors but fails to enforce capability checks on those actions. Authenticated users with low privileges, such as subscribers or contributors, can invoke restricted operations directly.

The result is broken access control across confidentiality, integrity, and availability. An attacker can read, modify, or disrupt plugin-managed content and configurations. Because WordPress commonly permits open user registration or newsletter subscriptions, the low-privilege barrier translates in practice to a near-network-accessible flaw on many sites.

Root Cause

The root cause is a missing authorization check [CWE-862] in one or more EmbedPress request handlers. The plugin verifies that a request comes from an authenticated user but does not verify that the user holds the required WordPress capability (for example, manage_options or edit_posts on the target object). Nonce validation, if present, does not compensate for the absent role or capability check.

Attack Vector

Exploitation requires the attacker to hold any authenticated WordPress account on the target site. The attacker sends a crafted HTTP request to a vulnerable EmbedPress endpoint, typically an admin-ajax.php action or a plugin REST route. Because the endpoint does not confirm the caller's role, the server executes the privileged action on the attacker's behalf. No user interaction and no elevated privileges are required.

Verified proof-of-concept code has not been released publicly. See the Patchstack Security Vulnerability Report for additional technical context.

Detection Methods for CVE-2024-38707

Indicators of Compromise

Requests to EmbedPress endpoints under admin-ajax.php or wp-json/embedpress/* originating from accounts with subscriber, contributor, or customer roles
Unexpected changes to EmbedPress settings, embed configurations, or plugin options in the wp_options table
New or modified posts, pages, or embed blocks authored by low-privilege accounts
HTTP 200 responses to plugin action requests that should return 403 for the calling role

Detection Strategies

Audit the installed EmbedPress version and flag any instance at 4.0.4 or earlier
Review WordPress access logs for POST requests to EmbedPress AJAX or REST endpoints from non-editor accounts
Correlate authentication events with subsequent privileged plugin actions to surface role mismatches

Monitoring Recommendations

Enable WordPress audit logging to capture user role, capability checks, and plugin option changes
Alert on modifications to wp_options keys owned by EmbedPress and on new administrative accounts
Forward web server and WordPress logs to a centralized SIEM or data lake for cross-correlation with authentication telemetry

How to Mitigate CVE-2024-38707

Immediate Actions Required

Upgrade EmbedPress to a version later than 4.0.4 that includes the vendor's authorization fix
Inventory all WordPress sites in the estate for the EmbedPress plugin and confirm the running version
Review recently created or modified low-privilege accounts and revoke any that are not required
Rotate credentials for accounts that accessed EmbedPress endpoints during the exposure window

Patch Information

WPDeveloper has addressed the missing authorization issue in a release subsequent to 4.0.4. Refer to the Patchstack Security Vulnerability Report for the fixed version and vendor advisory details. Apply the update through the WordPress plugin manager or WP-CLI.

Workarounds

Disable and remove the EmbedPress plugin until the patched version can be deployed
Restrict new user registration and limit low-privilege account creation on public-facing WordPress sites
Place the WordPress admin area behind a web application firewall rule that blocks EmbedPress action requests from non-editor roles

bash

# Update EmbedPress via WP-CLI on affected WordPress hosts
wp plugin update embedpress --version=latest
wp plugin list --name=embedpress --fields=name,status,version

# Temporary workaround: deactivate the plugin until patched
wp plugin deactivate embedpress