Is CVE-2026-104898 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-104898 being exploited in the wild.

How severe is CVE-2026-104898?

Medium severity, with a CVSS score of 6.8, published 10 October 2026.

Which products and versions are affected?

Bookly responsive appointment booking tool up to and including 28.4.

Is there a fix for CVE-2026-104898?

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-2026-104898 attacked?

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

Am I affected by CVE-2026-104898?

Check whether you run Bookly responsive appointment booking tool at an affected version. 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-2026-104898: Bookly insecure direct object reference in staff account binding

CVE-2026-104898 · Severity: medium · CVSS 6.8 · Published 2026-10-10

Bookly is a WordPress plugin that manages online appointment scheduling and staff information. An authenticated attacker with basic subscriber access can hijack staff member accounts, including those of administrators, by reassigning the WordPress user linked to a staff record without proper authorization. This allows privilege escalation and unauthorized access to higher-privileged accounts.

Vendors: Bookly.

Quick answers

Is CVE-2026-104898 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-104898 being exploited in the wild.
How severe is CVE-2026-104898?: Medium severity, with a CVSS score of 6.8, published 10 October 2026.
Which products and versions are affected?: Bookly responsive appointment booking tool up to and including 28.4.
Is there a fix for CVE-2026-104898?: 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-2026-104898 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-104898?: Check whether you run Bookly responsive appointment booking tool at an affected version. 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 plugin fails to validate user-controlled parameters (id, wp_user_id) when updating staff-to-user bindings, allowing authenticated users to modify the WordPress account association of any staff record. The vulnerability affects all versions up to 28.4 and requires the attacker to be already linked to at least one Bookly staff record; this occurs by default when the bookly_gen_allow_staff_edit_profile option is enabled (true on fresh installs).

Affected products

Bookly Bookly – Responsive Appointment Booking Tool up to and including 28.4

Timeline

2026-10-10: disclosed

References

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