External risk intelligence

Widget Options Contributor RCE Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.9)

CVE-2026-54823

This vulnerability affects a WordPress plugin, which is a component of a web application. WordPress sites are typically public-facing web services, and plugin functionality is generally accessible to authenticated users over the public internet in standard deployment patterns.

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 security vulnerability has been identified in the Widget Options plugin, potentially allowing for remote code execution. This type of vulnerability could enable unauthorized individuals to compromise the integrity and functionality of systems utilizing this plugin. The main concern is confirming relevance and exposure to this specific threat.

Remote code execution in a website plugin.
Critical flaw allows unauthorized system control.
Confirm if this plugin is in use.

Attack Path

How an attacker could exploit the issue

An attacker with low-privilege access to the affected system could exploit this vulnerability by sending specially crafted requests. This could allow them to execute arbitrary code on the server, potentially leading to a complete compromise of the application and its data. The vulnerability lies within the Widget Options feature, and successful exploitation could result in significant damage.

Requires authenticated access.
Triggers code execution via feature.
Leads to critical system compromise.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker with limited privileges to execute arbitrary code on the server, potentially leading to a full compromise of the affected system. This could occur when the vulnerable component is exposed to the network and an authenticated user triggers the vulnerable function. The consequences may include unauthorized access, data manipulation, or complete system disruption.

Server-side code execution.
Triggered by authenticated user interaction.
Complete system compromise possible.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical contributor remote code execution vulnerability in Widget Options affects web applications utilizing this plugin. Infrastructure or platform teams managing the WordPress environment, along with application owners, should prioritize confirming the presence and exposure of this component. The initial step involves identifying all instances of the affected technology, verifying its accessibility and business criticality, and then locating the accountable owner to plan remediation based on the assessed risk.

Platform and application owners should lead.
Verify exposure and business criticality first.
Plan remediation based on risk assessment.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is the Widget Options plugin?

Widget Options is a WordPress plugin used to manage and extend widget functionality on websites. It allows site administrators to control where, when, and for whom widgets appear across their pages, serving as an add-on that enhances the default content management capabilities of a WordPress installation.

What does CWE-94 mean for CVE-2026-54823?

CWE-94 refers to improper control of generation of code, often called Code Injection. In the context of CVE-2026-54823, it means the plugin fails to safely handle input, allowing an attacker to insert and execute their own server-side code. This bypasses security boundaries to run unauthorized commands on the underlying host.

Do I need administrator access to trigger this vulnerability?

No, you do not need full administrative rights. The vulnerability requires a user account with lower-level permissions, specifically a Contributor role, to initiate the malicious request. Unauthorized visitors without any login credentials cannot trigger this specific flaw.

Why is this CVE considered relevant to public-facing websites?

According to Halo Surface Signal, this plugin is a component of WordPress, which is typically used for public-facing web services. Because these sites are reachable via the internet, the plugin's features are generally accessible to authenticated users remotely, increasing the potential reach of an attacker.

How should I respond if I use Widget Options?

Start by confirming if your site has the affected plugin version installed. Work with your application or platform team to inventory all instances, assess the business role of the specific site, and coordinate with the system owner to manage the risk and prepare for necessary updates or configuration changes.

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.