CVE-2026-110982: AI Engine WordPress Privilege Escalation

CVE-2026-110982 Overview

CVE-2026-110982 is a broken access control vulnerability in the AI Engine WordPress plugin versions prior to 3.8.6. The plugin fails to verify that the caller has permission to edit a targeted object before updating its title and excerpt. Authenticated users with the Editor role or above can modify the title and excerpt of arbitrary posts of any type. The flaw extends to content that editors normally cannot modify, including navigation menus, block templates, global styles, and WooCommerce coupons. The weakness is tracked as a missing authorization issue [CWE-862].

Critical Impact
Editor-level users can tamper with navigation, site templates, global styles, and WooCommerce coupons, causing integrity loss across the WordPress site.

Affected Products

AI Engine WordPress plugin versions prior to 3.8.6
WordPress sites exposing Editor or higher roles to untrusted users
WooCommerce stores running the vulnerable plugin alongside coupon objects

Discovery Timeline

2026-10-21 - CVE-2026-110982 published to the National Vulnerability Database
2026-10-21 - Last updated in NVD database

Technical Details for CVE-2026-110982

Vulnerability Analysis

The AI Engine plugin exposes functionality to update post titles and excerpts through its request handler. The handler accepts an object identifier from the authenticated caller and writes the supplied values without validating that the caller holds the capability required to edit that specific object. WordPress differentiates capabilities per post type and per object, so an Editor who legitimately edits posts and pages should not be able to modify navigation menus (wp_navigation), block templates (wp_template), global styles (wp_global_styles), or WooCommerce coupons (shop_coupon). The missing capability check removes that boundary and permits cross-object-type modification of two user-visible fields.

Root Cause

The root cause is a missing authorization check [CWE-862]. The vulnerable code path trusts the caller's general edit privileges and omits a per-object current_user_can('edit_post', $post_id) style verification before persisting changes. As a result, authorization is enforced only at the role level rather than at the capability-plus-object level that WordPress expects for protected post types.

Attack Vector

Exploitation requires an authenticated session with Editor privileges or higher. The attacker sends a crafted request to the plugin endpoint referencing the object identifier of a protected item and supplying attacker-controlled title and excerpt values. The server updates the targeted object, enabling defacement of navigation labels, modification of block template metadata, alteration of global style records, or renaming of WooCommerce coupon entries. Because the attack targets integrity, confidentiality and availability remain unaffected.

No public proof-of-concept code is available. See the WPScan Vulnerability Report for technical details.

Detection Methods for CVE-2026-110982

Indicators of Compromise

Unexpected changes to post_title or post_excerpt fields on wp_navigation, wp_template, wp_global_styles, or shop_coupon records
WordPress audit log entries showing Editor accounts touching objects outside standard post or page types
Requests to AI Engine plugin REST or AJAX endpoints referencing non-standard post IDs

Detection Strategies

Compare current post titles and excerpts for protected post types against a known-good backup or version-controlled export
Enable a WordPress activity logging plugin and alert on edits to wp_navigation, wp_template, wp_global_styles, and shop_coupon
Review web server logs for POST requests to AI Engine endpoints originating from Editor accounts

Monitoring Recommendations

Track the installed AI Engine plugin version across all WordPress instances and flag anything below 3.8.6
Monitor database writes to the wp_posts table where post_type matches protected types and the modifying user holds the Editor role
Alert on privilege-sensitive object changes outside scheduled content workflows

How to Mitigate CVE-2026-110982

Immediate Actions Required

Update the AI Engine WordPress plugin to version 3.8.6 or later on every affected site
Audit navigation menus, block templates, global styles, and WooCommerce coupons for unauthorized changes
Review Editor-level accounts and remove any that are inactive or unnecessary

Patch Information

The vendor addressed CVE-2026-110982 in AI Engine version 3.8.6 by adding the missing capability check before updating object titles and excerpts. Site administrators should apply the update through the WordPress plugin manager or by deploying the patched release package. Refer to the WPScan Vulnerability Report for the advisory record.

Workarounds

Deactivate the AI Engine plugin until the update to 3.8.6 or later can be deployed
Temporarily restrict Editor-role assignments to fully trusted users while the patch is pending
Place the plugin's REST and AJAX endpoints behind a web application firewall rule that blocks requests referencing protected post types

bash

# Verify the installed AI Engine plugin version using WP-CLI
wp plugin get ai-engine --field=version

# Update AI Engine to the patched release
wp plugin update ai-engine --version=3.8.6