What is CVE-2026-40780?

CVE-2026-40780 is a high-severity vulnerability in Liquid Web / Stellarwp Bookit, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-06-02.

How severe is CVE-2026-40780?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Liquid Web / Stellarwp Bookit

CVE-2026-40780

Authentication Bypass Using an Alternate Path or Channel vulnerability in Liquid Web / StellarWP BookIt allows Password Recovery Exploitation. This issue affects BookIt: from n/a before 2.5.4.1.

EPSS: 0.000 (11.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Liquid Web / Stellarwp Bookit — versions n/a

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-40780?: CVE-2026-40780 is a high-severity vulnerability in Liquid Web / Stellarwp Bookit, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.5/10. Published 2026-06-02.
How severe is CVE-2026-40780?: High severity. CVSS v3 base score is 7.5 out of 10.