CVE-2026-87115 VikAppointments Services Booking Calendar - Arbitrary File Deletion

VikAppointments Services Booking Calendar WordPress plugin <= 1.2.21 contains an arbitrary file deletion vulnerability caused by insufficient file path validation in the extract function, letting unauthenticated attackers delete files remotely, exploit requires a published File-type custom field on the confirmation page shortcode.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.88% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Arbitrary File Deletion
Impact
Remote Code Execution, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
3 October 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version beyond 1.2.21.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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