VDB-367986 · CVE-2026-40780 · GCVE-0-2026-40780

Liquid Web/StellarWP BookIt Plugin prior 2.5.4.1 on WordPress authentication bypass

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Liquid Web/StellarWP BookIt Plugin on WordPress. This vulnerability affects unknown code. The manipulation results in authentication bypass. This vulnerability is identified as CVE-2026-40780. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Liquid Web/StellarWP BookIt Plugin on WordPress. Affected is an unknown part. The manipulation with an unknown input leads to a authentication bypass vulnerability. CWE is classifying the issue as CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released by Davidfdzmorilla. The advisory is available at patchstack.com. This vulnerability is traded as CVE-2026-40780 since 04/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 2.5.4.1 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

WordPress Plugin

Vendor

Name

BookIt Plugin

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Patchstack): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: BookIt Plugin 2.5.4.1

Timelineinfo

04/15/2026 CVE reserved
06/02/2026 +48 days Advisory disclosed
06/02/2026 +0 days VulDB entry created
06/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: patchstack.com
Researcher: Davidfdzmorilla
Status: Confirmed

CVE: CVE-2026-40780 (🔒)
GCVE (CVE): GCVE-0-2026-40780
GCVE (VulDB): GCVE-100-367986

Entryinfo

Created: 06/02/2026 19:01
Changes: 06/02/2026 19:01 (65)
Complete: 🔍
Cache ID: 216::103