External risk intelligence

WebinarIgnition allows attackers to steal sensitive data.

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2026-40797

WebinarIgnition has a critical flaw allowing attackers to steal sensitive data from your customer database through online webinar registrations. Act now to protect your information.

4Halo Surface Signal

SQL Injection

External exposure likelihood

Halo Surface Signal score for CVE-2026-40797

The vulnerability exists in a WordPress plugin designed for use on public-facing websites. This software is inherently intended to handle HTTP traffic from external users, such as webinar registrants, making the vulnerable web interface and its associated input parameters commonly exposed to the public internet in standard deployments.

Horizon Alert

Summary of the vulnerability and why it matters

This vulnerability in WebinarIgnition allows for SQL injection, meaning an attacker could potentially manipulate database queries. This is a serious concern because it can lead to unauthorized access or modification of sensitive data.

  • Attackers can exploit this remotely.
  • Data integrity and confidentiality are at risk.
  • This affects systems using WebinarIgnition.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker could exploit this blind SQL injection vulnerability by sending specially crafted requests to the webinar registration endpoint. This could allow them to infer database contents, potentially leading to unauthorized access or manipulation of sensitive webinar attendee information.

  • No authentication required.
  • Targets public-facing webinar registration.
  • Requires input manipulation.

Live Threat

Current exploitation, exposure, and threat context

This SQL injection vulnerability in a WordPress plugin designed for public-facing webinars presents a clear attack vector for data theft or manipulation. Attackers often favor such vulnerabilities due to the direct access they provide to sensitive user data stored within the application's database. The public nature of webinar registration platforms further increases the likelihood of exploitation.

  • Blind SQL Injection is exploitable.
  • Public exploit code is available.
  • It affects a plugin for public websites.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize blocking SQL injection attempts against WebinarIgnition, as this critical vulnerability can lead to data breaches. If patching is delayed, implement input validation and monitor for suspicious database queries to detect and contain potential exploitation.

  • Block SQL injection attacks.
  • Monitor for suspicious queries.
  • Patch WebinarIgnition when available.

Frequently asked questions

What is WebinarIgnition and its purpose?

WebinarIgnition is a WordPress plugin for creating and managing live, automated, and evergreen webinars. It allows users to host webinars directly on their WordPress site, handle registrations, send reminders, and embed e-commerce checkout functions within the webinar room.

What type of vulnerability is CVE-2026-40797?

CVE-2026-40797 is a Blind SQL Injection vulnerability, categorized as CWE-89. This allows an attacker to inject SQL commands indirectly, inferring database information through application responses rather than direct output.

How can CVE-2026-40797 be exploited?

An unauthenticated attacker can exploit this vulnerability by sending specially crafted requests to the webinar registration endpoint. This input manipulation can reveal database contents, potentially leading to unauthorized access or modification of sensitive attendee information.

What is the relevance of CVE-2026-40797 for public-facing sites?

This SQL injection vulnerability in a WordPress plugin for public webinars is a direct attack vector for data theft. Attackers target such vulnerabilities for access to sensitive user data. The public nature of webinar registration platforms increases exploitation likelihood.

What steps should be taken to address CVE-2026-40797?

Prioritize blocking SQL injection attempts against WebinarIgnition due to this critical vulnerability. If patching is delayed, implement input validation and monitor for suspicious database queries to detect and contain potential exploitation.

References