What is CVE-2026-77009?

CVE-2026-77009 is a critical-severity vulnerability in Watchman-Site7, classified under Code Injection. CVSS score: 9.9/10. Published 2026-09-02.

How severe is CVE-2026-77009?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Watchman-Site7

CVE-2026-77009

The WatchMan-Site7 WordPress plugin through 4.2.0 does not restrict access to its debugging console, which executes user-supplied PHP code, allowing any authenticated user, such as a subscriber, to run arbitrary code on the server.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Unknown Watchman-site7

Weakness classification (CWE)

CWE-94 — Code Injection

References

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

Frequently asked questions

What is CVE-2026-77009?: CVE-2026-77009 is a critical-severity vulnerability in Watchman-Site7, classified under Code Injection. CVSS score: 9.9/10. Published 2026-09-02.
How severe is CVE-2026-77009?: Critical severity. CVSS v3 base score is 9.9 out of 10.