Is CVE-2026-92561 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-92561 being exploited in the wild.

How severe is CVE-2026-92561?

Medium severity, with a CVSS score of 6.1, published 18 September 2026.

Which products and versions are affected?

Phonetic Brands Booking Calendar up to and including 11.8.2.

Is there a fix for CVE-2026-92561?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-92561 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-92561?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-92561: WordPress Booking Calendar reflected XSS in options parameter

CVE-2026-92561 · Severity: medium · CVSS 6.1 · Published 2026-09-18

The Booking Calendar is a popular WordPress plugin used to manage appointment and event scheduling on websites. An attacker can craft a malicious link containing hidden code that, when clicked by a website visitor, injects and executes arbitrary scripts in their browser. This could allow account takeover, session hijacking, or theft of sensitive information from visitors. The vulnerability is particularly dangerous because it bypasses the plugin's security check by default, allowing anyone to exploit it without authentication.

Quick answers

Is CVE-2026-92561 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-92561 being exploited in the wild.
How severe is CVE-2026-92561?: Medium severity, with a CVSS score of 6.1, published 18 September 2026.
Which products and versions are affected?: Phonetic Brands Booking Calendar up to and including 11.8.2.
Is there a fix for CVE-2026-92561?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-92561 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-92561?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a Reflected Cross-Site Scripting (XSS) flaw in the 'options' parameter of the Booking Calendar plugin. The root cause is insufficient input sanitization and output escaping in the vulnerable component. The nonce check is disabled by default (via the 'booking_is_nonce_at_front_end' option), allowing unauthenticated requests to reach the vulnerable code path. An attacker can craft a reflected XSS payload via a malicious URL; no user authentication is required, only social engineering to trick a user into clicking the link. Successful exploitation allows arbitrary JavaScript execution in the victim's browser within the context of the WordPress site, enabling session hijacking, credential theft, or malware injection. Patching to version 11.8.3 or later should resolve the issue.

Affected products

Phonetic Brands Booking Calendar up to and including 11.8.2

Timeline

2026-09-18: disclosed

References

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