Nelio Software Nelio AB Testing WordPress Plugin Code Injection Vulnerability Allowing Arbitrary Code Execution

Vulnerability

A code injection vulnerability allowing arbitrary code execution has been identified in the Nelio AB Testing WordPress plugin, affecting versions through 8.1.8. The vulnerability arises from improper control over code generation, which could be exploited to execute malicious code remotely on the affected site.

Impact

Exploitation of this vulnerability could lead to arbitrary code execution on the affected WordPress site.

Remediation

Users of the Nelio AB Testing WordPress plugin should update to version 8.2.0 or later to address this vulnerability. Patchstack users can enable auto-update for vulnerable plugins.

Added: Jan 22, 2026, 6:12 PM
Updated: Jan 22, 2026, 6:12 PM

Vulnerability Rating

Custom Algorithm
spread
3.4
impact
10.0
exploitability
5.4
remediation
7.9
relevance
2.3
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.