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TrueBooker EUVDEUVD-2026-104105

| CVE-2026-94231 MEDIUM
Missing Authorization (CWE-862)
2026-10-19 WPScan GHSA-6cwc-727q-r97h
5.3
CVSS 3.1 · Vendor: WPScan
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Identify site running TrueBooker < 1.3.0
  2. Exploit
    Send crafted request to unprotected endpoint
  3. Execution
    Bypass missing authorisation check
  4. Impact
    Create or modify booking services and prices

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

No special conditions beyond having the TrueBooker WordPress plugin installed at a version before 1.3.0 - exploitation is remote and unauthenticated (PR:N/UI:N/AC:L) against default configurations, requiring no credentials, user interaction, or non-default settings. The only limiting factors are deployment of this specific plugin and version; impact is restricted to creating/modifying booking services, categories, and prices (integrity), with no data exposure or service disruption.

Impact

This is a moderate-severity broken access control flaw with mixed risk signals. The provided CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms unauthenticated, remote, low-complexity exploitation against the TrueBooker WordPress plugin, and public exploit code exists (reported by WPScan), both of which raise practical risk. However, impact is bounded: the vector scores C:N/I:L/A:N, meaning only limited integrity impact (attackers can create/modify booking services, categories, and prices) with no confidentiality or availability loss. It is NOT listed in CISA KEV, so there is no confirmed active exploitation, and no EPSS score was provided to gauge exploitation probability. The net picture is a high-exposure but low-impact issue: trivially reachable and useful for data tampering or commercial manipulation (e.g., altering prices), but not a system-compromise vector. Treat as a prompt-patch item for affected sites rather than an emergency. Note a data-quality concern: the input 'Information Disclosure' tag conflicts with the vector (C:N, I:L), as this is an integrity/authorization flaw, not disclosure.

Exploit ScenarioDerived

An unauthenticated attacker sends crafted HTTP requests directly to the plugin's unprotected booking endpoints and creates or modifies booking services, categories, and their prices without logging in. Publicly available exploit code (WPScan) lowers the barrier to doing this at scale, enabling price manipulation or corruption of a site's booking catalog.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 19, 2026

Missing authorization checks in the TrueBooker WordPress plugin before 1.3.0 allow unauthenticated remote attackers to create and modify booking services and categories, including their prices. Publicly available exploit code exists, and the assessed CVSS vector indicates integrity-only impact (C:N/I:L/A:N) with no confidentiality or availability effect. This is a moderate-severity broken access control issue requiring only that the vulnerable plugin version be deployed.

RemediationAI

Vendor-released patch: upgrade TrueBooker to 1.3.0 or later, the first version outside the stated affected range; consult the WPScan advisory at https://wpscan.com/vulnerability/d90ad3f4-4d58-43bc-8f17-0f6b8dfdde4f/ for confirmation. If immediate upgrade is not possible, deactivate the plugin until patched; this removes booking functionality but eliminates exposure. If booking must remain online, add a virtual patch or WAF rule that blocks unauthenticated requests to TrueBooker service and category create or update actions while allowing legitimate public booking views, understanding that overly broad rules can break normal booking flows and administrative edits. After patching, review services, categories, and prices for unauthorized changes and restore from known-good data if needed.

Affected VersionsENISA

TrueBooker 1.1.9 <1.3.0

Affected Packages

euvd truebooker fix: 1.3.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

TrueBooker is a WordPress booking plugin. The CPE cpe:2.3:a:unknown:truebooker:*:*:*:*:*:*:*:* records the product under an unknown vendor and a wildcard version, so the authoritative affected range comes from the advisory: all versions before 1.3.0. The root cause is absent authorization or capability checks on some booking-service and category functions, a broken access control class of flaw (CWE not supplied in the input). Because the CVSS vector is AV:N/AC:L/PR:N/UI:N, exploitation is remote and unauthenticated against default configurations; no user interaction or special settings are required beyond plugin deployment. The source tag mentions information disclosure, but the assessed vector confines impact to integrity: attackers can alter services, categories, and prices, not read sensitive data or disrupt availability. The WPScan reference is marked as an exploit.

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Severity by source

Vendor (WPScan) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 5.3 MEDIUM

Missing authorisation check allows unauthenticated remote writes to booking data (PR:N, AV:N, AC:L); impact is limited integrity modification only, so I:L with C:N and A:N.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch available
Oct 19, 2026 - 08:01 EUVD
CVE Published
Oct 19, 2026 - 06:46 cve.org
MEDIUM 5.3

DescriptionCVE.org

The TrueBooker WordPress plugin before 1.3.0 does not have authorisation checks in place in some of its functionality, allowing unauthenticated users to create and modify booking services and categories, including their prices.

Threat Intelligence Overview

EPSS Score
0.2%
Top 93% exploitable
Prevalence
Low
niche WordPress booking plugin, limited and unverified install footprint
Exploit
POC
Public exploit code exists
Social Media
2
Sightings
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-14545 CRITICAL POC
9.8 Jul 28

Account takeover in TrueBooker WordPress plugin before 1.2.4 enables unauthenticated attackers to reset any user’s passw

CVE-2024-6924 CRITICAL POC
9.8 Sep 08

The TrueBooker WordPress plugin before 1.0.3 does not properly sanitise and escape a parameter before using it in a SQL

CVE-2026-61951 CRITICAL
9.8 Jul 23

Privilege escalation in the TrueBooker (truebooker-appointment-booking) WordPress plugin through version 1.2.3 lets unau

CVE-2026-73347 CRITICAL
9.8 Aug 19

Unauthenticated privilege escalation in the TrueBooker (truebooker-appointment-booking) WordPress plugin versions 1.2.6

CVE-2026-61950 CRITICAL
9.3 Jul 23

Unauthenticated SQL injection in the TrueBooker (truebooker-appointment-booking) WordPress plugin by themetechmount affe

CVE-2026-94229 MEDIUM POC
5.3 Oct 19

TrueBooker, a WordPress booking/appointment plugin, renders a booking confirmation summary without verifying that the re

CVE-2026-94230 MEDIUM POC
5.3 Oct 19

Unauthenticated attackers can create TrueBooker bookings at attacker-chosen prices and attach them to arbitrary customer

CVE-2026-94228 MEDIUM POC
5.3 Oct 19

TrueBooker, a WordPress plugin, lets unauthenticated remote attackers rewrite its entire stored configuration because on

CVE-2026-48881 CRITICAL
9.1 Jun 15

Unauthenticated broken access control in the TrueBooker WordPress appointment-booking plugin (versions ≤ 1.1.9 by ThemeT

CVE-2024-6925 MEDIUM POC
4.3 Sep 08

The TrueBooker WordPress plugin before 1.0.3 does not have CSRF check in place when updating its settings, which could a

CVE-2026-39798 MEDIUM
6.5 Oct 06

Unauthenticated settings modification in the TrueBooker appointment-booking WordPress plugin (versions 1.2.9 and earlier

CVE-2026-39663 MEDIUM
5.3 Apr 08

TrueBooker appointment booking plugin through version 1.1.5 fails to enforce proper authorization controls, allowing una

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