Stored Cross-Site Scripting Vulnerability in WP Ghost Security Plugin by WordPress
CVE-2026-89051

7.2HIGH

Key Information:

Vendor

WordPress
Status
Hide My WP Ghost – Security & Firewall
Vendor
CVE Published:
16 October 2026

What is CVE-2026-89051?

The WP Ghost (Hide My WP Ghost) plugin for WordPress is susceptible to Stored Cross-Site Scripting due to inadequate input validation and output encoding in the 'replaceHeadersAndTags' function. This flaw allows unauthenticated attackers to inject malicious scripts into web pages, which can then execute whenever a user clicks on an infected link, posing significant security risks to users and their data.

Affected Version(s)

Hide My WP Ghost – Security & Firewall 0 <= 7.0.12

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?reponame=&ne...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pham Duc Anh
.