LH Signing <= 2.83 - Cross-Site Request Forgery
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-352.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| shawfactor | LH Signing | up to 2.83 | — | No fix listed | CNA |
- LH Signing Vendorshawfactor Affected up to 2.83 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9633
- 2026-10-03 Alias added: GHSA-x85q-6fq4-p9qp
References
Other 4
- 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
More shawfactor vulnerabilities
- TI-2023-17026 WordPress LH Password Changer Plugin <= 1.55 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
- TI-2025-17443 WordPress LH Email plugin <= 1.12 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2025-17314 WordPress LH Login Page plugin <= 2.14 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2025-21862 WordPress LH OGP Meta plugin <= 1.73 - CSRF to Stored XSS Vulnerability CVSS 3.1HIGH 7.1
- TI-2024-34487 WordPress LH QR Codes plugin <= 1.06 - Stored Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2024-08556 LH Copy Media File <= 1.08 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
Sources
- CVE-2025-9633 · CVE Program
- CVE-2025-9633 · NVD
- FIRST EPSS
- GHSA-x85q-6fq4-p9qp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences