CVE-2019-15774

ND Booking <= 2.4 - Unauthenticated Arbitrary Options Update

2019-08-05 00:00

Strategic Overview

Status: Patched in 2.5
Affected Plugin: Hotel Booking
Affected Version: < 2.5
CVSS: 9.6Critical
Weakness type: CWE-862 · Missing Authorization
CVE: CVE-2019-15774

At a glance

CVE-2019-15774 is a critical-severity Missing Authorization vulnerability in the Hotel Booking WordPress plugin, affecting versions < 2.5. It carries a CVSS score of 9.6 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 2.5; sites on affected versions should update now. Disclosed August 2019, reported by Jerome Bruandet.

Vulnerability Overview

The ND Booking plugin for WordPress is vulnerable to arbitrary options update in versions up to, and including 2.4, due to missing capability checks and insufficient validation of the options supplied. This makes it possible for unauthenticated attackers to update arbitrary site options that can allow them to escalate their privileges to that of an administrator which can lead to a full site takeover.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-862: Missing Authorization

Reaching this weakness in Hotel Booking < 2.5 takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Hotel Booking the fix is 2.5: builds < 2.5 are affected, anything from 2.5 onward is not.

Remediation

Update to version 2.5, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Hotel Booking 2.5 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2019-15774 https://www.wordfence.com/threat-intel/vulnerabilities/id/8b776a8a-b071-4caf-9e67-6f08ace4da2a https://nvd.nist.gov/vuln/detail/CVE-2019-15774

Related records

Same weakness class

5.3CVE-2025-63001: Hotel Booking <= 3.8 Missing AuthorizationCVE-2025-63001

Other vulnerabilities in Hotel Booking

CVSS Vector

9.6

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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