Medium severity · published Jul 23, 2026
CVE-2026-27377
WordPress QuickCal - Appointment Booking Calendar for WordPress plugin <= 1.0.16 - Broken Access Control vulnerability
6.7
CVSS
0.4%
EPSS
No
On KEV
Description
Booking Agent Broken Access Control in QuickCal - Appointment Booking Calendar for WordPress <= 1.0.16 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QA
QuickCal - Appointment Booking Calendar for WordPress · axiomthemes
through 1.0.16 · source: vendor
Affected product
QA
QuickCal - Appointment Booking Calendar for WordPress
axiomthemes
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27377
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27377
patchstack.com
https://patchstack.com/database/wordpress/plugin/quickcal/vulnerability/wordpress-quickcal-appointment-booking-calendar-for-wordpress-plugin-1-0-16-broken-access-control-vulnerability?_s_id=cve