CVE-2026-84251: CWE-862 Missing Authorization in click5 CRM add-on to Ninja Forms
Description
The click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1 does not have authorisation and CSRF checks when updating options via a REST endpoint, and does not ensure that the option to be updated belongs to the click5 CRM add-on to Ninja Forms WordPress plugin through 1.0.1. As a result, unauthenticated attackers could change arbitrary blog options, allowing them to create a new administrator account and take over the site.
CVSS v3.1
Score 9.8critical
Affected software
click5 CRM add-on to Ninja Forms
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84251 describes a missing authorization and CSRF check vulnerability in the click5 CRM add-on to Ninja Forms WordPress plugin versions up to 1.0.1. The REST endpoint responsible for updating options does not verify that the request is authorized or that the options belong to the plugin. Consequently, unauthenticated attackers can change arbitrary blog options, including creating new administrator accounts, leading to full site takeover.
Potential Impact
An unauthenticated attacker can exploit this vulnerability to modify arbitrary blog options, including creating new administrator accounts. This results in complete compromise of the affected WordPress site, allowing the attacker to gain full administrative control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the REST endpoint and monitor for suspicious activity related to option updates. Avoid using the affected plugin version or disable it if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-01T13:21:51.778Z
- State
- PUBLISHED
Threat ID: 6acb2de12cdf04f656b78cf9
Added to database: 10/11/2026, 06:34:09 UTC
Last enriched: 10/11/2026, 07:04:07 UTC
Last updated: 10/11/2026, 21:33:38 UTC
Views: 17
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