Read the docs

ValidFormBuilder version 4.5.4 contains a PHP Object Injection vulnerability in Valid…

Priority MEDIUM 45CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

ValidFormBuilder version 4.5.4 contains a PHP Object Injection vulnerability in Valid Form unserialize method that can result in Possible to execute unauthorised system commands remotely and disclose file contents in file system.

Why it matters now

EPSS 0.01621 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:validformbuilder:validform_builder:4.5.4:*:*:*:*:*:*:*4.5.4VulnerableValidformbuilder
  • cpe:2.3:a:validformbuilder:validform_builder:4.5.4:*:*:*:*:*:*:* Versions 4.5.4 Vulnerable ·Validformbuilder

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000059
  2. 2026-10-03 Alias added: GHSA-p9vx-hjr4-hvx2

References

Sources