CVE-2023-2834Public exploitNetwork attack vector

Account takeover via unverified booking email

Published Jun 30, 2023 · Updated Apr 8, 2026

Authentication bypass in StellarWP Bookit 2.3.7 and earlier allows remote attackers to access any WordPress account through a booking request. CustomerController resolves the supplied email to an existing user, while save_or_get_wp_user returns that user's ID and the booking flow sets authentication cookies without verifying a password. The attacker must know an account email and reach a page containing the booking form; an administrator email yields full site control.

CVSS severity9.8
Critical
EPSS probability1.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in StellarWP Bookit 2.3.7 and earlier allows remote attackers to access any WordPress account through a booking request. CustomerController resolves the supplied email to an existing user, while save_or_get_wp_user returns that user's ID and the booking flow sets authentication cookies without verifying a password. The attacker must know an account email and reach a page containing the booking form; an administrator email yields full site control.

The record

CVE
CVE-2023-2834
Published
Jun 30, 2023
Updated
Apr 8, 2026
Vendor
Liquid Web
Product
Bookit — Booking & Appointment Calendar
Classifications
CWE-306, CWE-288, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Liquid Web · Bookit — Booking & Appointment Calendarversion=0 <=2.3.7

Published CVSS scores

9.8WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-288Authentication Bypass Using an Alternate Path or Channel
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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