CVE-2026-84261
Received Received - Intake

Stored Cross-Site Scripting in Click5 CRM Contact Form 7 WordPress Plugin

Publication date: 2026-10-11

Last updated on: 2026-10-11

Assigner: WPScan

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.

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Meta Information

Published
2026-10-11
Last Modified
2026-10-11
Generated
2026-10-11
AI Q&A
2026-10-11
EPSS Evaluated
N/A
NVD
CVE-2026-84261
EUVD
EUVD-2026-96760

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Unknown click5 CRM add-on to Contact Form 7 0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in the click5 CRM add-on to Contact Form 7 WordPress plugin up to version 1.0.4. It allows unauthenticated attackers to submit malicious scripts via an endpoint, which are then stored and executed when high-privilege users like admins view an affected admin page.

Detection Guidance

Check if the click5 CRM add-on to Contact Form 7 plugin version 1.0.4 or below is installed. Look for unauthenticated POST requests to the plugin's endpoint with the post_notifications parameter containing malicious scripts.

Impact Analysis

An attacker could exploit this to execute arbitrary scripts in the context of an admin user's browser session. This could lead to session hijacking, unauthorized actions on the site, or complete site takeover if the admin has sufficient privileges.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate GDPR (data protection) and HIPAA (health data privacy) requirements. Organizations must address it to maintain compliance and protect sensitive user data.

Mitigation Strategies

Update the click5 CRM add-on to Contact Form 7 plugin to the latest version immediately to patch the vulnerability. If an update is not available, consider disabling or removing the plugin until a fix is released.

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