LatePoint permits stored XSS through latepoint_resources
A logged-in Contributor can place script content in the btn_wrapper_classes attribute of the [latepoint_resources] shortcode in LatePoint 5.3.2 and earlier. In shortcode_latepoint_resources(), the locations branch inserts the value into a div class attribute without escaping, so the stored script runs when a visitor opens the page. Version 5.4.0 escapes the value with esc_attr().
- Component
- Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
- Plugin slug
latepoint- Affected
- <= 5.3.2
- Safe version
5.4.0- Published
- Aug 06, 2026
This CVE was published Aug 06, 2026 and is one of 32 known issues for this plugin.
Update, patch or deactivate.
Update LatePoint to 5.4.0 or later and review existing shortcodes for hostile btn_wrapper_classes values.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The LatePoint plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btn_wrapper_classes' attribute of the 'latepoint_resources' 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 'shortcode_latepoint_resources' 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N