CVE-2026-93875
Received Received - Intake

Stored XSS in JetAppointment WordPress Plugin

Publication date: 2026-10-02

Last updated on: 2026-10-02

Assigner: Wordfence

Description
The JetAppointment plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'friendlyTime' parameter in all versions up to, and including, 2.5.2.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is stored in the wp_jet_appointments_meta table via the unauthenticated jet_engine_form_booking_submit endpoint and executes in the administrator's browser when the appointment details popup is opened in the WordPress admin panel.

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Meta Information

Published
2026-10-02
Last Modified
2026-10-02
Generated
2026-10-02
AI Q&A
2026-10-02
EPSS Evaluated
N/A
NVD
CVE-2026-93875
EUVD
EUVD-2026-91634

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetappointment jetappointment to 2.5.2.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The JetAppointment WordPress plugin has a stored cross-site scripting (XSS) vulnerability in versions up to 2.5.2.1. The 'friendlyTime' parameter lacks proper input sanitization and output escaping, allowing unauthenticated attackers to inject malicious scripts. These scripts are stored in the database and execute in the admin panel when appointment details are viewed.

Detection Guidance

Check WordPress installations for the JetAppointment plugin versions up to 2.5.2.1. Inspect the wp_jet_appointments_meta table for suspicious scripts in the friendlyTime parameter. Review server logs for requests to the unauthenticated jet_engine_form_booking_submit endpoint.

Impact Analysis

An attacker could steal sensitive admin session cookies, perform actions on your behalf, or deface your WordPress site. Since the payload executes in the admin panel, it could compromise user data, modify site settings, or install backdoors for persistent access.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection. If exploited, it may result in data breaches, triggering mandatory breach notifications and potential fines under these regulations.

Mitigation Strategies

Update the JetAppointment plugin to the latest version beyond 2.5.2.1. If an update is unavailable, disable the plugin immediately. Implement input sanitization for the friendlyTime parameter and restrict access to the jet_engine_form_booking_submit endpoint.

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