CVE-2026-10148
Received Received - Intake

Stored XSS in Booking for Appointments and Events Calendar WordPress Plugin

Publication date: 2026-09-12

Last updated on: 2026-09-12

Assigner: Wordfence

Description
The Booking for Appointments and Events Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple Elementor widgets in versions up to and including 2.4.9. This is due to insufficient input sanitization and output escaping on the 'load_manually' parameter in the render() methods of classes. This makes it possible for authenticated attackers, with Contributor-level access and above who can use Elementor, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The vulnerability was partially patched in version 2.4.8.

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Meta Information

Published
2026-09-12
Last Modified
2026-09-12
Generated
2026-09-12
AI Q&A
2026-09-12
EPSS Evaluated
N/A
NVD
CVE-2026-10148
EUVD
EUVD-2026-76874

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wordpressextensions booking_for_appointments_and_events_calendar to 2.4.9 (inc)
wp_event_appointments booking_for_appointments_and_events_calendar to 2.4.9 (inc)

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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

This is a Stored Cross-Site Scripting (XSS) vulnerability in the Booking for Appointments and Events Calendar WordPress plugin. It affects versions up to 2.4.9 due to insufficient input sanitization and output escaping on the 'load_manually' parameter in Elementor widgets. Authenticated attackers with Contributor-level access or higher can inject malicious scripts into pages.

Detection Guidance

To detect this vulnerability, inspect WordPress sites using the Booking for Appointments and Events Calendar plugin versions up to and including 2.4.9. Check for unauthorized scripts in Elementor widgets, particularly via the 'load_manually' parameter. Use commands like 'wp plugin list' to verify plugin versions and 'grep' to search for suspicious scripts in plugin files.

Impact Analysis

An attacker could inject malicious scripts into your WordPress site. When users visit the compromised page, the script executes, potentially stealing cookies, session tokens, or other sensitive data. It may also allow defacement or redirection to malicious sites.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for protecting user data. Non-compliance may result in legal penalties, fines, or reputational damage due to unauthorized access to sensitive information.

Mitigation Strategies

Immediately update the Booking for Appointments and Events Calendar plugin to the latest version. Remove or restrict Contributor-level access to Elementor users. Scan for and remove any injected web scripts in pages or posts. Monitor for unusual activity or unauthorized changes.

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