JetFormBuilder – Hierarchical Select <= 1.0.10 — Unauthenticated Insecure Direct Object Reference
CVE-2026-123861Published · Updated Action summary
Affected: ≤1.0.10Update to 1.0.11 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page7
Am I affected?
JetFormBuilder – Hierarchical Select jet-form-builder-hierarchical-select
- Affected≤ 1.0.10
- Patched in1.0.11
Update to 1.0.11 or newer.
You are affected if you run ≤ 1.0.10. Version 1.0.11 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under JetFormBuilder – Hierarchical Select.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 1.0.11, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch JetFormBuilder – Hierarchical Select to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Nikiforos Bafas.
The JetFormBuilder – Hierarchical Select plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.0.10. This is due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to perform an unauthorized action.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.