CVE-2026-40742

WordPress Nelio AB Testing plugin <= 8.2.8 - Sensitive Data Exposure vulnerability

MEDIUM

5.3

CVSS Score

Published: April 15, 2026 at 10:21 AM UTC

Updated: October 25, 2026 at 11:10 PM UTC

1 product affected across 1 vendorNelio AB Testing

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Severity

MEDIUM5.3

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Missing Authorization vulnerability in Nelio Software Nelio AB Testing nelio-ab-testing allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Nelio AB Testing: from n/a through <= 8.2.8.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nelio AB Testing · Neliowordpress-plugin

90%

v ≤ 8.2.8

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

VDB Entry

Source: cverecord

https://patchstack.com/database/Wordpress/Plugin/nelio-ab-testing/vulnerability/wordpress-nelio-ab-testing-plugin-8-2-8-sensitive-data-exposure-vulnerability?_s_id=cve

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMPatchstack

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-862

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