CVE-2026-84254: CWE-862 Missing Authorization in click5 CRM add-on to Contact Form 7
Description
The click5 CRM add-on to Contact Form 7 WordPress plugin through 1.0.4 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 Contact Form 7 WordPress plugin through 1.0.4. 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 Contact Form 7
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The click5 CRM add-on to Contact Form 7 WordPress plugin through version 1.0.4 does not implement authorization or CSRF checks when updating options via a REST endpoint. Additionally, it fails to verify that the option being updated belongs to the plugin itself. This missing authorization (CWE-862) and missing CSRF protection (CWE-352) allow unauthenticated attackers to change arbitrary blog options, including the creation of new administrator accounts, enabling complete site compromise.
Potential Impact
Unauthenticated attackers can exploit this vulnerability to modify arbitrary blog options, including creating new administrator accounts. This can lead to full administrative control over the affected WordPress site, resulting in site takeover.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict access to the REST API endpoints and monitor for suspicious activity related to option updates. Consider disabling or removing the click5 CRM add-on if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-01T13:21:56.676Z
- State
- PUBLISHED
Threat ID: 6acb2de12cdf04f656b78cfc
Added to database: 10/11/2026, 06:34:09 UTC
Last enriched: 10/11/2026, 07:03:59 UTC
Last updated: 10/11/2026, 21:33:37 UTC
Views: 17
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