LH Signing <= 2.83 - Cross-Site Request Forgery
Vulnerability Description
The LH Signing plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.83. This is due to missing or incorrect nonce validation on the plugin_options function. This makes it possible for unauthenticated attackers to modify plugin settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-9633
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Nabil Irawan
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fadd7934-bdd9-47e9-bd34-d162ff3b7cd4?source=cve
- https://plugins.trac.wordpress.org/browser/lh-signing/trunk/lh-signing.php#L1886
- https://plugins.trac.wordpress.org/browser/lh-signing/trunk/partials/option-settings.php#L3
- https://plugins.trac.wordpress.org/browser/lh-signing/trunk/lh-signing.php#L1870
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