CVE-2026-3718

HIGH 7.2

ManageWP Worker <= 4.9.31 - Unauthenticated Stored Cross-Site Scripting via 'MWP-Key-Name' Header

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

The ManageWP Worker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'MWP-Key-Name' HTTP request header in all versions up to, and including, 4.9.31. This is due to insufficient input sanitization and output escaping of attacker-controlled header values. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator visits the plugin's connection management page with debug parameters.

CWE	CWE-79
Vendor	managewp
Product	managewp worker
Published	May 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

managewp / ManageWP Worker

0 ≤ 4.9.31

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/db6f08f9-4da3-450d-bf1e-5c9f0aab02a1?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3485733/worker

Credits

Do Phuc