Auth bypass in Booking Manager

CVE-2026-91025

The Booking Manager WordPress plugin before 2.1.21 does not verify that a request to modify a user's Booking Manager WordPress plugin before 2.1.21-specific settings targets the requesting user's own account, allowing any authenticated user with subscriber-level access and above to create or overwrite the Booking Manager WordPress plugin before 2.1.21's per-user settings on arbitrary users, including administrators.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Booking Manager

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-91025?
CVE-2026-91025 is a medium-severity vulnerability in Booking Manager, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-23.
How severe is CVE-2026-91025?
Medium severity. CVSS v3 base score is 4.3 out of 10.