CVE-2026-5391: LatePoint <= 5.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
The LatePoint plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btnwrapperclasses' attribute of the 'latepointresources' shortcode in all versions up to, and including, 5.3.2. This is due to insufficient input sanitization and output escaping in the 'locations' branch of the 'shortcodelatepointresources' function. 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-5391?
CVE-2026-5391 has a medium severity score of 6.4.
How do I fix CVE-2026-5391?
To fix CVE-2026-5391, update the LatePoint plugin for WordPress to version 5.3.3 or higher.
What type of vulnerability is CVE-2026-5391?
CVE-2026-5391 is a Stored Cross-Site Scripting (XSS) vulnerability.
Who is affected by CVE-2026-5391?
All users of the LatePoint plugin for WordPress versions up to and including 5.3.2 are affected by CVE-2026-5391.
What causes CVE-2026-5391?
CVE-2026-5391 is caused by insufficient input sanitization and output escaping in the 'btn_wrapper_classes' attribute of the 'latepoint_resources' shortcode.