CVE-2026-87891 — MEDIUM (6.5)

Vulnerability Description

The Rox Appointment Booking WordPress plugin before 1.2.0 does not perform any capability or authorization check when saving its holiday schedule, allowing unauthenticated attackers to overwrite the dates the booking system treats as unavailable, which can block legitimate bookings or open dates the site owner intended to keep closed.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

LOW

Related Weaknesses (CWE)

CWE-284

References

https://wpscan.com/vulnerability/e7f3b29e-2503-41bb-b15c-3c0ef71a3a00/

FAQ

What is CVE-2026-87891?

CVE-2026-87891 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The Rox Appointment Booking WordPress plugin before 1.2.0 does not perform any capability or authorization check when saving its holiday schedule, allowing unauthenticated attackers to overwrite the ...

How severe is CVE-2026-87891?

CVE-2026-87891 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-87891?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.