Description
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.
Published: 2026-05-14
Score: 7.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 14 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Managewp
Managewp managewp Worker
Wordpress
Wordpress wordpress
Vendors & Products Managewp
Managewp managewp Worker
Wordpress
Wordpress wordpress

Thu, 14 May 2026 11:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 14 May 2026 07:00:00 +0000

Type Values Removed Values Added
Description 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.
Title ManageWP Worker <= 4.9.31 - Unauthenticated Stored Cross-Site Scripting via 'MWP-Key-Name' Header
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


Subscriptions

Managewp Managewp Worker
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-05-14T10:43:47.929Z

Reserved: 2026-03-07T12:14:34.057Z

Link: CVE-2026-3718

cve-icon Vulnrichment

Updated: 2026-05-14T10:43:42.941Z

cve-icon NVD

Status : Deferred

Published: 2026-05-14T07:16:19.703

Modified: 2026-05-14T14:28:41.283

Link: CVE-2026-3718

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-14T14:32:52Z

Weaknesses