External risk intelligence

Widget Options Plugin RCE Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-116852

The vulnerability affects a WordPress plugin, which functions as an extension of a web application. Web applications and their associated plugins are commonly deployed as internet-facing services, making the attack surface readily reachable from the public internet in typical web hosting environments.

Code Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in a widely used WordPress plugin, "Widget Options," that allows for remote code execution. This means an attacker could potentially run unauthorized commands on affected systems if they have privileged access. The primary concern is to confirm if this plugin is in use and exposed to such access, as its widespread nature could present a significant risk if exploited.

Unauthenticated attackers could execute commands remotely.
Plugin use requires confirmation of potential exposure.
Assess and confirm if this plugin is in use.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by leveraging their existing administrative access to a system running a vulnerable version of the Widget Options plugin. By crafting a malicious input, they can trigger the flaw, potentially leading to remote code execution and the ability to control the affected component.

Requires administrative access.
Triggered by crafted malicious input.
Allows remote code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an authenticated attacker to execute arbitrary code on the affected system, potentially leading to a complete compromise of the server. The impact depends on the privileges of the authenticated user and the specific configurations of the Widget Options plugin and the broader WordPress installation. When supported by the advisory, this could affect system data, service behavior, and sensitive information.

System access and control.
Remote code execution via the plugin.
Complete system compromise.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in Widget Options allows for remote code execution, impacting customizability and potentially leading to full system compromise. The first practical step is for the platform or web application team to identify all instances of the affected plugin, assess their exposure, and confirm business criticality. Subsequently, coordination with the vendor-management team or direct vendor engagement may be necessary for remediation, alongside planning for a risk-based maintenance window.

Platform or application teams should own remediation.
Verify plugin reachability and business criticality.
Plan coordinated vendor engagement or patching.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is the Widget Options plugin used for?

Widget Options is a WordPress plugin designed to extend the default functionality of site sidebars and widgets. It allows users to control the visibility of widgets on specific pages, devices, or for certain user roles, providing greater customization for how visitors experience a website's layout.

What does CWE-94 mean for CVE-2026-116852?

CWE-94 refers to improper control of generation of code. In the context of this vulnerability, it means the plugin fails to properly sanitize or restrict user input, which could allow an attacker to inject and execute their own unauthorized code on the server hosting the WordPress site.

How is this remote code execution triggered?

This vulnerability is triggered when an attacker provides specially crafted malicious input to the plugin. It is important to note that this flaw requires existing administrative-level privileges to initiate; it is not triggered by public interactions that lack these specific credentials.

Do I need to worry about this if my site is not on the internet?

Halo Surface Signal indicates that because this plugin is part of a web application, it is commonly deployed as an internet-facing service. While internal-only sites have a reduced attack surface, any instance of this plugin remains a concern if an attacker gains administrative access to the environment.

When should I take action for this vulnerability?

You should begin by auditing your environment to confirm if the Widget Options plugin is installed. If found, assess its necessity and business impact, then coordinate with your technical team to plan for vendor-provided updates or remediation steps during your next maintenance window.

References

patchstack.com/database/wordpress/plugin/widget-options/vulnerabilit…

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.