What the vulnerability does
01Description
The BetterDocs plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'betterdocs_feedback_form' shortcode in all versions up to, and including, 4.3.8. This is due to insufficient input sanitization and output escaping on user supplied shortcode attributes. 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
BetterDocs versions up to 4.3.8 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users with low privileges to inject malicious scripts. The vulnerability has changed scope, meaning injected code can affect other users and site functionality beyond the plugin itself. Site administrators should update to a version newer than 4.3.8 to remediate this issue.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that execute in other users' browsers and affect site functionality.
Potential impact on your site
04Site Impact
Other site users and admins may have their sessions compromised or see malicious content injected into pages.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege authenticated account (e.g., contributor or subscriber role).
Key dates
06Disclosure timeline
April 16, 2026
CVE published
April 16, 2026
Record updated
