CVE-2026-84261: CWE-79 Cross-Site Scripting (XSS) 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 sanitise and escape content submitted through an unauthenticated endpoint before outputting it back in an admin page, leading to Stored XSS which could be used against high privilege users such as admin.
CVSS v3.1
Score 8.8high
Affected software
click5 CRM add-on to Contact Form 7
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The click5 CRM add-on to Contact Form 7 WordPress plugin versions up to and including 1.0.4 contain a stored XSS vulnerability (CWE-79). The issue is due to improper sanitization and escaping of user-submitted content via an unauthenticated endpoint, which is then rendered in an admin page. This could enable attackers to inject malicious scripts that execute when viewed by admin users, potentially compromising administrative control or session integrity.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary JavaScript in the context of an administrator's browser session. This may lead to actions such as session hijacking, privilege escalation, or unauthorized administrative operations within the affected WordPress environment.
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 affected plugin and monitor for suspicious activity. Consider disabling or removing the click5 CRM add-on to Contact Form 7 plugin if possible to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-01T13:44:47.580Z
- State
- PUBLISHED
Threat ID: 6acb2de12cdf04f656b78d00
Added to database: 10/11/2026, 06:34:09 UTC
Last enriched: 10/11/2026, 07:03:47 UTC
Last updated: 10/11/2026, 21:33:41 UTC
Views: 16
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