CVE-2026-102382: Majestic Support Auth Bypass Vulnerability

CVE-2026-102382 Overview

CVE-2026-102382 is an Insecure Direct Object Reference (IDOR) vulnerability in the Majestic Support WordPress plugin by Ahmad. The flaw stems from Authorization Bypass Through User-Controlled Key [CWE-639], which allows authenticated users to access resources belonging to other users by manipulating object identifiers. The vulnerability affects Majestic Support versions from an unspecified initial release through 1.2.0. Exploitation requires low-level privileges and no user interaction, making it reachable by any logged-in user on an affected site.

Critical Impact
Authenticated attackers with low privileges can read or modify support ticket data belonging to other users by tampering with user-controlled identifiers.

Affected Products

Ahmad Majestic Support plugin for WordPress
Versions from n/a through 1.2.0
WordPress sites using the plugin for help desk and ticketing functionality

Discovery Timeline

2026-10-01 - CVE-2026-102382 published to NVD
2026-10-01 - Last updated in NVD database

Technical Details for CVE-2026-102382

Vulnerability Analysis

The Majestic Support plugin exposes functionality that references internal objects, such as support tickets or user records, through identifiers supplied in client requests. The plugin fails to verify that the authenticated session owns the requested object before returning or modifying it. An attacker iterates predictable identifiers to reach resources outside their authorization scope.

The issue is classified under [CWE-639] Authorization Bypass Through User-Controlled Key. Because the attack vector is network-based and only low privileges are required, any registered user on a vulnerable WordPress instance can trigger the flaw. The impact is limited to integrity, with no direct effect on confidentiality or availability as scored by the vendor.

Root Cause

The root cause is missing or incomplete access-control checks on request handlers that accept object identifiers. The plugin trusts user-supplied keys rather than binding operations to the identity of the authenticated session. This pattern violates the principle that authorization must be enforced server-side on every object reference.

Attack Vector

Exploitation occurs over HTTP against a WordPress site running Majestic Support. The attacker authenticates with any valid account, then issues requests targeting plugin endpoints while substituting another user's object identifier. Successful requests return or modify data owned by the targeted user. Full technical details are documented in the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-102382

Indicators of Compromise

Sequential or enumerated numeric identifiers appearing in request parameters to Majestic Support plugin endpoints
Authenticated low-privilege accounts generating unusual volumes of ticket or object access requests
Support ticket records showing access or modification from users who are not the ticket owner

Detection Strategies

Review WordPress access logs for repeated requests to Majestic Support endpoints with incrementing identifier parameters
Correlate authenticated session identity against the owner field of accessed support records in the database
Alert on authenticated users accessing object identifiers outside their historical access pattern

Monitoring Recommendations

Enable verbose logging on WordPress admin-ajax and REST API endpoints exposed by the plugin
Monitor the plugin's database tables for cross-user read or write activity
Track plugin version inventory across managed WordPress sites to confirm patch status

How to Mitigate CVE-2026-102382

Immediate Actions Required

Identify all WordPress sites running the Majestic Support plugin at version 1.2.0 or earlier
Upgrade to a vendor-patched release once available from the plugin author
Audit existing support ticket data for signs of unauthorized cross-user access
Review and tighten WordPress user registration settings to limit the pool of authenticated attackers

Patch Information

At the time of publication, the Patchstack advisory lists the vulnerability as present through version 1.2.0. Site operators should consult the Patchstack Vulnerability Report and the plugin's official changelog for the fixed version.

Workarounds

Deactivate the Majestic Support plugin until a patched version is installed if the risk cannot be accepted
Restrict user registration and require administrator approval for new accounts to reduce exposure
Deploy a web application firewall rule that blocks requests to plugin endpoints where the supplied object identifier does not match the authenticated session owner
Limit plugin endpoint access by IP or role where business workflows allow

bash

# Configuration example
# Disable the plugin via WP-CLI until patched
wp plugin deactivate majestic-support

# Confirm installed version across managed sites
wp plugin get majestic-support --field=version