What is CVE-2026-32573?

CVE-2026-32573 is a critical-severity vulnerability in Nelio Software Ab Testing, classified under Code Injection. CVSS score: 9.1/10. Published 2026-03-25.

How severe is CVE-2026-32573?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Nelio Software Ab Testing

CVE-2026-32573

Improper Control of Generation of Code ('Code Injection') vulnerability in Nelio Software Nelio AB Testing nelio-ab-testing allows Code Injection.This issue affects Nelio AB Testing: from n/a through <= 8.2.7.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (20.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Nelio Software Ab Testing — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

patchstack.com/database/Wordpress/Plugin/nelio-ab-testing/vulnerability/wordpre… (vdb-entry)

Frequently asked questions

What is CVE-2026-32573?: CVE-2026-32573 is a critical-severity vulnerability in Nelio Software Ab Testing, classified under Code Injection. CVSS score: 9.1/10. Published 2026-03-25.
How severe is CVE-2026-32573?: Critical severity. CVSS v3 base score is 9.1 out of 10.