CVE-2026-40742: WordPress Nelio AB Testing plugin <= 8.2.8 - Sensitive Data Exposure vulnerability

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-15 · updated 2026-10-25
Weakness: CWE-862

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 products

Nelio Software Nelio AB Testing: through 8.2.8

References

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

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