CVE-2026-27377
Received Received - Intake

Booking Agent Broken Access Control in QuickCal WordPress Plugin

Vulnerability report for CVE-2026-27377, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Patchstack

Description

Booking Agent Broken Access Control in QuickCal - Appointment Booking Calendar for WordPress <= 1.0.16 versions.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
pixel_makers_creative_inc quickcal to 1.0.16 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

This is a Broken Access Control vulnerability in the QuickCal - Appointment Booking Calendar for WordPress plugin versions 1.0.16 and earlier. It occurs due to missing authorization checks, allowing unprivileged users to perform actions with higher privileges.

Detection Guidance

To detect this vulnerability, check if you are running QuickCal - Appointment Booking Calendar for WordPress plugin version 1.0.16 or earlier. You can do this by logging into your WordPress admin panel, navigating to the Plugins section, and reviewing the version of the QuickCal plugin.

Impact Analysis

An attacker could exploit this to perform unauthorized actions, potentially modifying or accessing sensitive booking data. However, the severity is low and exploitation is unlikely.

Compliance Impact

This vulnerability, a Broken Access Control issue, could allow unauthorized users to perform privileged actions. This may lead to unauthorized access to sensitive data, potentially violating GDPR (data protection) and HIPAA (healthcare data privacy) compliance requirements by exposing personal or protected health information.

Mitigation Strategies

Since there is no official patch available, immediately update the plugin to the latest version if an update is released. If no update is available, consider disabling the plugin or seeking assistance from a hosting provider or web developer to mitigate the risk. Monitor for any suspicious activity or unauthorized access attempts.

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EPSS Chart