What is the CVSS score of CVE-2026-27390?

CVE-2026-27390 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-27390?

Within 24 hours: Audit all systems using wedesigntech-ultimate-booking-addon and identify exposure scope; assess if booking functionality is customer-facing. Within 7 days: Implement compensating controls (disable plugin if non-critical, apply WAF rules to restrict plugin endpoints, segment booking infrastructure). Within 30 days: Monitor vendor for patch availability and establish upgrade timeline; consider alternative booking plugins if patch timeline is unclear.

CVE-2026-27390

HIGH

Authentication Bypass Using an Alternate Path or Channel (CWE-288)

2026-03-05 audit@patchstack.com

Authentication Bypass

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 22, 2026 - 21:37 vuln.today

cvss_changed

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 05, 2026 - 06:16 nvd

HIGH 8.8

DescriptionCVE.org

Authentication Bypass Using an Alternate Path or Channel vulnerability in designthemes WeDesignTech Ultimate Booking Addon wedesigntech-ultimate-booking-addon allows Authentication Abuse.This issue affects WeDesignTech Ultimate Booking Addon: from n/a through <= 1.0.1.

AnalysisAI

designthemes WeDesignTech Ultimate Booking Addon wedesigntech-ultimate-booking-addon contains a security vulnerability (CVSS 8.8).

Technical ContextAI

affects designthemes WeDesignTech Ultimate Booking Addon wedesigntech-ultimate-booking-addon. Authentication Bypass Using an Alternate Path or Channel vulnerability in designthemes WeDesignTech Ultimate Booking Addon wedesigntech-ultimate-booking-addon allows Authentication Abuse.This issue affects WeDesignTech Ultimate Booking Addon: from n/a through <= 1.0.1.