External risk intelligence

Tablesome Table Blind SQL Injection Vulnerability.

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-66659

This vulnerability affects a WordPress plugin, which is typically used to render content, forms, or data tables on public-facing websites. Because the plugin functions as part of a web application intended for public interaction, it is commonly deployed in an internet-facing context.

SQL 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

This advisory details a critical vulnerability within the Tablesome Table plugin, specifically a SQL injection flaw that could allow unauthorized access to data. The issue arises from how the plugin handles user-submitted information, potentially exposing sensitive details without proper safeguards. The primary concern is to confirm if this plugin is in use and assess any potential exposure.

Allows attackers to inject malicious SQL commands.
Matters for protecting sensitive customer and operational data.
Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this SQL injection vulnerability by sending specially crafted input to a vulnerable component of the Tablesome Table plugin. This exposure allows an attacker to manipulate database queries, potentially leading to the unauthorized disclosure of sensitive information or manipulation of data.

No privileges or user interaction needed.
Send malicious input to the plugin.
Risk of data exposure or modification.

Live Threat

Current exploitation, exposure, and threat context

A blind SQL injection vulnerability in Essekia Tablesome Table could allow an unauthenticated attacker to infer information from the database. This could occur when a user interacts with the affected component, potentially leading to the exposure of sensitive data.

Database data could be at risk.
Via crafted SQL queries to the tablesome table.
Information disclosure from the database.

Operational Fix

Recommended remediation, mitigation, and detection steps

Security teams and application owners are responsible for addressing this SQL injection vulnerability in Tablesome Table. The first practical step is to identify all instances of the affected plugin, confirm if they are exposed to the internet or host critical data, and then assign ownership for remediation.

Assign ownership to relevant teams.
Verify exposure and business criticality.
Plan remediation based on risk.

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 Essekia Tablesome Table plugin used for?

Tablesome Table is a WordPress plugin designed to help site administrators create, manage, and display data tables or forms. It is typically integrated into websites to handle structured information, render dynamic content for visitors, or capture user-submitted data directly on web pages.

How does CVE-2026-66659 create a security weakness?

This vulnerability is classified as CWE-89, or SQL Injection. It occurs when the plugin fails to properly filter user input before including it in a database query. Because the application blindly processes this input, an attacker can manipulate the underlying database commands to access or extract information they are not authorized to see.

Do I need to be logged in to trigger this SQL injection?

No. This vulnerability does not require any authentication or specific user interaction. An attacker can initiate the attack simply by sending specially crafted input to the affected plugin component. However, the bug is not triggered by standard, non-malicious site navigation; it requires purposefully designed SQL payloads.

Is my website at risk if it uses Tablesome Table?

According to Halo Surface Signal, this plugin is primarily used to render content on public-facing websites, making it highly likely to be internet-facing. If your instance is accessible to the public internet and handles sensitive operational or customer data, it is a higher priority for review than internal-only components.

How should I respond to this threat advisory?

Your first step is to locate all instances of the Tablesome Table plugin within your environment. Once identified, evaluate whether these instances are exposed to the internet or manage critical information. After assessing the business impact, coordinate with your technical team to track ownership and prioritize the necessary security updates to close the vulnerability.

References

patchstack.com/database/wordpress/plugin/tablesome/vulnerability/wor…

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.