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CVE-2026-27377: WordPress QuickCal - Appointment Booking Calendar for WordPress plugin <= 1.0.16 - Broken Access Control vulnerability

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-23 · updated 2026-10-24
• Weakness: CWE-862

Description

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

Affected products

• axiomthemes QuickCal - Appointment Booking Calendar for WordPress: through 1.0.16

References

• 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

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