CVE-2026-27377— WordPress QuickCal - Appointment Booking Calendar for WordPress plugin <= 1.0.16 - Broken Access Control vulnerability
Quick assessment
Affected
axiomthemes QuickCal - Appointment Booking Calendar for WordPress
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
QuickCal QuickCal是QuickCal公司的一个日程管理软件。 QuickCal 1.0.16及之前版本存在授权问题漏洞，该漏洞源于访问控制不当，可能导致特权用户网络访问造成授权问题。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| axiomthemes | QuickCal - Appointment Booking Calendar for WordPress | n/a≤ 1.0.16 |
affected |
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I. Basic Information for CVE-2026-27377
Vulnerability Information
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Vulnerability Title
WordPress QuickCal - Appointment Booking Calendar for WordPress plugin <= 1.0.16 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Booking Agent Broken Access Control in QuickCal - Appointment Booking Calendar for WordPress <= 1.0.16 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
QuickCal 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QuickCal QuickCal是QuickCal公司的一个日程管理软件。 QuickCal 1.0.16及之前版本存在授权问题漏洞，该漏洞源于访问控制不当，可能导致特权用户网络访问造成授权问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| axiomthemes | QuickCal - Appointment Booking Calendar for WordPress | n/a ~ 1.0.16 | - |
|
II. Public POCs for CVE-2026-27377
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-27377
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