What is CVE-2026-89051?

CVE-2026-89051 is a high-severity vulnerability in Johndarrel Hide My Wp Ghost – Security & Firewall, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-10-16.

How severe is CVE-2026-89051?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Johndarrel Hide My Wp Ghost – Security & Firewall

CVE-2026-89051

The WP Ghost (Hide My WP Ghost) – Security & Firewall plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'replaceHeadersAndTags' function in versions up to, and including, 7.0.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user clicks on the injected link.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-16 · last modified 2026-10-16.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Johndarrel Hide My Wp Ghost – Security & Firewall

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-89051?: CVE-2026-89051 is a high-severity vulnerability in Johndarrel Hide My Wp Ghost – Security & Firewall, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-10-16.
How severe is CVE-2026-89051?: High severity. CVSS v3 base score is 7.2 out of 10.