CVE-2026-45443: PDF Elementor Forms Auth Bypass Flaw

CVE-2026-45443 Overview

CVE-2026-45443 is a Missing Authorization vulnerability [CWE-862] in the ADD-ONS.ORG PDF for Elementor Forms + Drag And Drop Template Builder plugin for WordPress. The flaw stems from incorrectly configured access control security levels in the plugin. Authenticated attackers with low privileges can abuse exposed plugin functionality that should be restricted to higher-privileged roles. The issue affects all versions of the plugin up to and including 5.5.1.

Critical Impact
Authenticated users with minimal privileges can interact with restricted plugin functionality, leading to limited integrity impact and a scope change on affected WordPress sites.

Affected Products

ADD-ONS.ORG PDF for Elementor Forms + Drag And Drop Template Builder plugin for WordPress
All versions from initial release through 5.5.1
WordPress installations with the vulnerable plugin enabled

Discovery Timeline

2026-05-20 - CVE-2026-45443 published to the National Vulnerability Database (NVD)
2026-05-20 - Last updated in NVD database

Technical Details for CVE-2026-45443

Vulnerability Analysis

The vulnerability is a broken access control issue in the PDF for Elementor Forms + Drag And Drop Template Builder plugin. The plugin exposes functionality without verifying that the requesting user holds the appropriate capability or role. WordPress plugins typically gate sensitive actions behind current_user_can() checks or nonce validation. When those checks are missing or misconfigured, any authenticated user can invoke the action.

The attack requires network access and low privileges, with no user interaction needed. The CWE-862 classification confirms the root cause is an absent authorization check rather than a flawed one. The scope change indicates the impact can extend beyond the vulnerable component into the broader WordPress environment.

Root Cause

The plugin fails to enforce authorization on one or more action handlers exposed to authenticated sessions. Functions that should be limited to administrators or editors are reachable by subscriber-level accounts. This omission allows lower-privileged users to perform operations intended for trusted roles.

Attack Vector

An attacker authenticates to the target WordPress site with any valid low-privilege account, such as a subscriber. The attacker then issues a crafted HTTP request to the plugin endpoint that lacks proper capability checks. The request triggers the restricted functionality, producing limited integrity changes within the site. Refer to the Patchstack Security Vulnerability advisory for technical details.

Detection Methods for CVE-2026-45443

Indicators of Compromise

Unexpected modifications to PDF templates, form configurations, or plugin settings made by non-administrative accounts
HTTP POST or GET requests to plugin AJAX endpoints (such as admin-ajax.php or REST routes under the plugin namespace) originating from subscriber-level sessions
New or modified PDF template files within the plugin's upload or template directories without a corresponding administrator action

Detection Strategies

Audit WordPress logs for plugin action calls executed by users whose roles do not include plugin management capabilities
Compare plugin configuration state against a known-good baseline to identify unauthorized changes
Inspect web server access logs for repeated requests to plugin endpoints from low-privilege authenticated sessions

Monitoring Recommendations

Enable WordPress activity logging to capture user actions, role assignments, and plugin setting changes
Forward web server and application logs to a centralized analytics platform for correlation across user sessions and endpoints
Alert on anomalous request patterns targeting the pdf-for-elementor-forms plugin paths

How to Mitigate CVE-2026-45443

Immediate Actions Required

Identify all WordPress sites running the PDF for Elementor Forms + Drag And Drop Template Builder plugin at version 5.5.1 or earlier
Update the plugin to a fixed version once released by ADD-ONS.ORG, or disable the plugin until a patch is available
Review user accounts and remove unnecessary low-privilege accounts that could be abused by attackers

Patch Information

At the time of publication, the vulnerability is reported for versions through 5.5.1. Consult the Patchstack advisory and the plugin vendor's release notes for the corrected version.

Workarounds

Deactivate the plugin until a patched version is installed
Restrict registration on the affected WordPress site to prevent untrusted users from obtaining authenticated sessions
Apply a Web Application Firewall (WAF) rule to block requests to vulnerable plugin endpoints from non-administrative sessions

bash

# Configuration example: disable the plugin via WP-CLI until patched
wp plugin deactivate pdf-for-elementor-forms