CVE-2025-9633

MEDIUM 4.3

LH Signing <= 2.83 - Cross-Site Request Forgery

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-352
Vendor	shawfactor
Product	lh signing
Published	Sep 11, 2025
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

shawfactor / LH Signing

0 ≤ 2.83

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/fadd7934-bdd9-47e9-bd34-d162ff3b7cd4?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/lh-signing/trunk/lh-signing.php#L1886 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/lh-signing/trunk/partials/option-settings.php#L3 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/lh-signing/trunk/lh-signing.php#L1870

Credits

Nabil Irawan