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TI-2026-01596 Aliases CVE-2026-1932GHSA-gjxr-jc3p-683p

Missing authorization in bssoftware Appointment Booking Calendar Plugin – Bookr

Priority LOW 30CWE-862Published · Updated

Key facts

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

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

Summary

The Appointment Booking Calendar Plugin – Bookr plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the update-appointment REST API endpoint in all versions up to, and including, 1.0.2. This makes it possible for unauthenticated attackers to modify the status of any appointment.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0032 25th 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
Yes
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
bssoftwareAppointment Booking Calendar Plugin – Bookrup to 1.0.2—No fix listedCNA
  • Appointment Booking Calendar Plugin – Bookr Vendorbssoftware Affected up to 1.0.2 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-2026-1932
  2. 2026-10-03 Alias added: GHSA-gjxr-jc3p-683p

References

Other 3

Sources

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