CVE-2025-5805: Ninetheme Electron Auth Bypass Vulnerability

CVE-2025-5805 Overview

CVE-2025-5805 is a Missing Authorization vulnerability [CWE-862] affecting the Ninetheme Electron WordPress theme through version 1.8.2. The flaw stems from incorrectly configured access control security levels that fail to validate user permissions on protected actions. An authenticated attacker with low privileges can exploit this issue over the network to perform actions reserved for higher-privileged users. The vulnerability impacts data integrity without requiring user interaction or affecting confidentiality and availability directly.

Critical Impact

Authenticated low-privilege attackers can perform unauthorized actions on WordPress sites running the Electron theme, leading to high integrity impact through broken access control.

Affected Products

• Ninetheme Electron WordPress Theme versions up to and including 1.8.2
• WordPress installations using the Electron theme without the security patch
• Sites with multiple registered users where low-privilege accounts exist

Discovery Timeline

• 2026-01-22 - CVE-2025-5805 published to NVD
• 2026-04-27 - Last updated in NVD database

Technical Details for CVE-2025-5805

Vulnerability Analysis

The Electron WordPress theme contains one or more endpoints that perform privileged actions without verifying the caller's authorization level. The theme implements access control checks that are either missing entirely or incorrectly configured, allowing authenticated users with minimal privileges to invoke functionality intended for administrators or editors.

This class of broken access control vulnerability is common in WordPress themes that rely on wp_ajax_ hooks or custom REST endpoints without pairing authentication checks with capability validation through current_user_can(). The result is a privilege boundary violation within the WordPress role hierarchy.

Exploitation requires only valid low-privilege credentials, which are trivial to obtain on sites with open registration. The impact is high integrity damage, meaning attackers can modify theme settings, content, or other protected data.

Root Cause

The root cause is missing or improperly enforced authorization logic on theme endpoints. The code authenticates the request but fails to verify whether the authenticated user holds the capability required to perform the requested action.

Attack Vector

An attacker registers or compromises a low-privilege account on a target WordPress site running the Electron theme. The attacker then sends crafted HTTP requests to the vulnerable theme endpoints, invoking actions that should be restricted to administrators. Refer to the Patchstack WordPress Vulnerability advisory for endpoint-specific technical details.

Detection Methods for CVE-2025-5805

Indicators of Compromise

• Unexpected modifications to theme options, widgets, or site content originating from low-privilege user sessions
• HTTP POST requests to wp-admin/admin-ajax.php or theme-specific endpoints from subscriber-level accounts
• New or modified WordPress options, posts, or theme configuration entries with timestamps tied to non-administrator user activity

Detection Strategies

• Audit WordPress access logs for requests to Electron theme AJAX actions or REST routes from accounts lacking administrative roles
• Review the WordPress wp_options and theme settings tables for unauthorized changes
• Deploy a web application firewall ruleset that flags broken access control patterns against known WordPress theme endpoints

Monitoring Recommendations

• Enable verbose WordPress audit logging to capture user role context for every privileged action
• Monitor user registration spikes and subsequent administrative-style activity from newly created accounts
• Alert on theme option changes performed by users without the manage_options capability

How to Mitigate CVE-2025-5805

Immediate Actions Required

• Identify all WordPress sites running the Ninetheme Electron theme version 1.8.2 or earlier
• Disable open user registration if not strictly required for site operation
• Audit existing low-privilege accounts and remove any suspicious users created recently
• Apply the vendor patch as soon as it becomes available through the WordPress theme update channel

Patch Information

At the time of publication, the vulnerability affects Electron theme versions up to and including 1.8.2. Site administrators should consult the Patchstack advisory and the Ninetheme vendor channels for patched release information and upgrade instructions.

Workarounds

• Restrict access to wp-admin/admin-ajax.php and theme endpoints at the web server or WAF layer for non-administrator sessions
• Temporarily switch to an alternative theme until a patched version is installed
• Use a WordPress security plugin to enforce capability checks and block requests to known vulnerable theme actions

# Configuration example: identify sites running affected Electron theme version
wp theme list --format=csv | grep -i electron
wp theme get electron --field=version