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TI-2026-21793 Aliases CVE-2026-27377GHSA-r5c7-h5q4-cjrc

WordPress QuickCal - Appointment Booking Calendar for WordPress plugin <= 1.0.16 - Broken Access Control vulnerability

Priority LOW 30CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · Low · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00383 32nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
axiomthemesQuickCal - Appointment Booking Calendar for WordPressup to 1.0.16—No fix listedCNA
  • QuickCal - Appointment Booking Calendar for WordPress Vendoraxiomthemes Affected up to 1.0.16 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27377
  2. 2026-10-03 Alias added: GHSA-r5c7-h5q4-cjrc

References

Other 1

  • TI-2026-46749 WordPress AI ANN theme <= 1.29.0 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-46747 WordPress Agricola theme <= 1.21.0 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-46740 WordPress A.Williams theme <= 1.3.1 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-46739 WordPress 69 Clothing theme <= 1.2.11.1 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-41562 WordPress 777 theme <= 1.13.0 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-18082 WordPress Mounthood theme <= 1.3.2 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
See all 108 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences