CVE-2026-3718
HighSummary
The ManageWP Worker plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) 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.
Risk Assessment
Unauthenticated attackers can inject arbitrary web scripts that will execute whenever an administrator visits the plugin's connection management page with debug parameters. This could lead to account takeover or data theft.
Recommendation
It is recommended to update the ManageWP Worker plugin to the latest version to mitigate this vulnerability. Additionally, implementing appropriate security measures such as filtering HTTP headers is advisable.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

