Stored Cross-Site Scripting Vulnerability in ManageWP Worker Plugin for WordPress
CVE-2026-3718

7.2HIGH

Key Information:

Vendor

WordPress
Status
ManageWP Worker
Vendor
CVE Published:
14 May 2026

What is CVE-2026-3718?

The ManageWP Worker plugin for WordPress suffers from a Stored Cross-Site Scripting vulnerability due to inadequate input sanitization and output escaping in the 'MWP-Key-Name' HTTP request header. This allows unauthenticated attackers to inject malicious scripts. These scripts may execute within the context of the administrator's browser when accessing the plugin's connection management page with debug parameters, potentially compromising the security of the WordPress installation.

Affected Version(s)

ManageWP Worker 0 <= 4.9.31

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3485733/worker

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

Do Phuc
.