What the vulnerability does
01Description
The Chatbot for WordPress by Collect.chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '_inpost_head_script[synth_header_script]' post meta field in all versions up to, and including, 2.4.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
02Summary
The Collect.chat WordPress plugin versions 2.4.8 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious JavaScript that executes in the browsers of other site users, including administrators. The vulnerability affects the plugin's scope across the site, potentially compromising user sessions and sensitive data.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that runs in other users' browsers, potentially stealing session tokens or admin credentials.
Potential impact on your site
04Site Impact
Authenticated attackers can compromise admin accounts and steal sensitive data from site visitors and staff.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
February 14, 2026
CVE published
April 8, 2026
Record updated
