CVE-2026-92561

Booking Calendar <= 11.8.2 - Reflected Cross-Site Scripting via 'options' Parameter

Published: Sep 18, 2026Updated: Sep 18, 2026 Sources: CVE List NVDCWE-79

6.1MEDIUM

Description

The Booking Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'options' parameter in all versions up to, and including, 11.8.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The nonce check is bypassed by default because the 'booking_is_nonce_at_front_end' option ships disabled, allowing unauthenticated requests to reach the vulnerable sink without any verification.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-79

Affected Products

wpdevelop

commercialaka booking manager, booking calendar, email reminders

Booking CalendarOn-prem

Web & CMS Plugins / wordpress-plugin

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://www.wordfence.com/threat-intel/vulnerabilities/id/e8645b58-6b2a-4659-a002-d622453bea42?source=cve

wordfence.com

https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/timeline/v2/wpbc-class-timeline_v2.php#L593

plugins.trac.wordpress.org

https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/lib/wpbc-ajax.php#L25

plugins.trac.wordpress.org

and 3 more references View all →

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