Cyber Resilience

CVE-2026-40797

Critical

Published: 05 May 2026

Published
05 May 2026
Modified
05 May 2026
KEV Added
—
Patch
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CVSS Score v3.1 9.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
EPSS Score 0.0034 25.8th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-40797 is a critical-severity SQL Injection (CWE-89) vulnerability. Its CVSS base score is 9.3 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 25.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-40797 is an Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability, specifically enabling Blind SQL Injection, in the WebinarIgnition WordPress plugin developed by Saleswonder LLC. This flaw affects all versions of the plugin from n/a through 4.08.253. The vulnerability carries a CVSS v3.1 base score of 9.3 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L), indicating critical severity due to its network accessibility, low attack complexity, lack of required privileges or user interaction, and scoped impact with high confidentiality loss.

Unauthenticated remote attackers can exploit this vulnerability over the network with low complexity and no user interaction. Successful exploitation allows attackers to perform blind SQL injection, potentially extracting sensitive data from the underlying database, as reflected in the high confidentiality impact score, while causing limited availability disruption.

The primary advisory is available from Patchstack at https://patchstack.com/database/wordpress/plugin/webinar-ignition/vulnerability/wordpress-webinarignition-plugin-4-06-08-sql-injection-vulnerability?_s_id=cve, which details the vulnerability in the WebinarIgnition WordPress plugin.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability details

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Saleswonder LLC WebinarIgnition allows Blind SQL Injection. This issue affects WebinarIgnition: from n/a through 4.08.253.

CWE(s)
CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Direct unauthenticated blind SQLi in public-facing WordPress plugin enables remote exploitation of the web application for data extraction from the backend database.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-24956Shared CWE-89
CVE-2026-33615Shared CWE-89
CVE-2025-28939Shared CWE-89
CVE-2021-47872Shared CWE-89
CVE-2025-28873Shared CWE-89
CVE-2019-25636Shared CWE-89
CVE-2026-32611Shared CWE-89
CVE-2026-42755Shared CWE-89
CVE-2024-53544Shared CWE-89
CVE-2026-21410Shared CWE-89

Affected Assets

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Information Input Validation directly prevents blind SQL injection by requiring mechanisms to neutralize special elements in inputs used for SQL commands in the WebinarIgnition plugin.

SI-2 Flaw Remediation good match
prevent

Flaw Remediation mandates timely patching of the vulnerable WebinarIgnition plugin versions up to 4.08.253 to eliminate the SQL injection vulnerability.

SC-7 Boundary Protection partial match
prevent

Boundary Protection enables web application firewalls or similar controls at network interfaces to block SQL injection payloads targeting the unauthenticated plugin endpoint.

References