The VikAppointments Services Booking Calendar plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the extract function in all versions up to, and including, 1.2.21. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires at least one File-type custom field to be published on the confirmation page shortcode, as this field is not created by default during plugin installation.
History

Sun, 04 Oct 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared E4jvikwp
E4jvikwp vikappointments Services Booking Calendar
Wordpress-extensions
Wordpress-extensions vikappointments Services Booking Calendar
Vendors & Products E4jvikwp
E4jvikwp vikappointments Services Booking Calendar
Wordpress-extensions
Wordpress-extensions vikappointments Services Booking Calendar

Sat, 03 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 03 Oct 2026 07:15:00 +0000

Type Values Removed Values Added
Description The VikAppointments Services Booking Calendar plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the extract function in all versions up to, and including, 1.2.21. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires at least one File-type custom field to be published on the confirmation page shortcode, as this field is not created by default during plugin installation.
Title VikAppointments Services Booking Calendar <= 1.2.21 - Unauthenticated Arbitrary File Deletion via 'old_vapcfN' Parameter
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-10-03T06:38:23.319Z

Updated: 2026-10-03T15:42:42.039Z

Reserved: 2026-09-08T20:45:54.127Z

Link: CVE-2026-87115

cve-icon Vulnrichment

Updated: 2026-10-03T15:38:47.867Z

cve-icon NVD

Status : Deferred

Published: 2026-10-03T07:16:48.347

Modified: 2026-10-06T15:04:52.637

Link: CVE-2026-87115

cve-icon Redhat

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