What is CVE-2026-11976?

CVE-2026-11976 is a critical-severity vulnerability in Monsterinsights Pro, classified under Hidden Functionality. CVSS score: 10.0/10. Published 2026-08-06.

How severe is CVE-2026-11976?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Monsterinsights Pro

CVE-2026-11976

The official MonsterInsights Pro update distribution bucket (`monster-insights.s3.amazonaws.com`) was compromised. Both the current release (10.2.2) and the version MonsterInsights rolled back to (10.2.0) contain a malicious file, `class-s…

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Unknown Monsterinsights Pro — versions 10.2.0

Weakness classification (CWE)

CWE-912 — Hidden Functionality

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-11976?: CVE-2026-11976 is a critical-severity vulnerability in Monsterinsights Pro, classified under Hidden Functionality. CVSS score: 10.0/10. Published 2026-08-06.
How severe is CVE-2026-11976?: Critical severity. CVSS v3 base score is 10.0 out of 10.