Ninja Forms Signature Contract Add-On for WordPress: Broken Access Control
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Missing authorization (CWE-862) in the WP E-Signature Ninja Forms Signature Contract Add-On (ninja-signature-contract-forms-add-on) allows exploitation of incorrectly configured access control security levels. It affects versions from n/a through 3.2.5. CVSS 3.1 scores it 5.3 (MEDIUM): the attack vector is network, complexity is low, and no privileges or user interaction are required, with low confidentiality impact.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
Missing Authorization vulnerability in WP E-Signature Ninja Forms Signature Contract Add-On ninja-signature-contract-forms-add-on allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Ninja Forms Signature Contract Add-On: from n/a through 3.2.5.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| WP E-Signature | Ninja Forms Signature Contract Add-On | up to 3.2.5 | — | No fix listed | CNA |
- Ninja Forms Signature Contract Add-On VendorWP E-Signature Affected up to 3.2.5 Fixed in — No fix listed CNA
Remediation
No fixed version is listed for this add-on. Until the vendor publishes one, review access controls on the add-on's functions, limit exposure, and watch WP E-Signature for an update.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-16 Threatist record created from CVE-2026-110378
More WP E-Signature vulnerabilities
- TI-2026-76044 Electronic Signature Add-on for Fluent Forms IDOR Authorization Bypass CVSS 3.1HIGH 7.5
- TI-2026-37819 WordPress Signature Add-On for WooCommerce plugin <= 2.0 - Sensitive Data Exposure vulnerability CVSS 3.1HIGH 7.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences