Unauthenticated XSS Vulnerability in Popup Box Plugin by WordPress
CVE-2026-54192

7.1HIGH

Key Information:

Vendor

WordPress

Status
Vendor
CVE Published:
17 June 2026

What is CVE-2026-54192?

The Popup Box plugin for WordPress has a vulnerability that allows attackers to inject arbitrary scripts without authentication. This flaw, present in all versions up to and including 6.2.9, can be exploited to execute malicious code when users interact with the affected elements of the plugin. It is crucial for users and administrators to take immediate action to secure their installations against potential exploitation.

Affected Version(s)

Popup box <= 6.2.9

References

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
.