--- title: "CVE-2026-87115: VikAppointments Services Booking Calendar - Arbitrary File Deletion" description: "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." url: https://panop.io/threat-heartbeat/CVE-2026-87115/ --- # 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87115) ## 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](https://cwe.mitre.org/data/definitions/22.html) ## 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 - [https://nvd.nist.gov/vuln/detail/CVE-2026-87115](https://nvd.nist.gov/vuln/detail/CVE-2026-87115) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/controllers/confirmapp.php#L88](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/controllers/confirmapp.php#L88) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/vikappointments.php#L237](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/vikappointments.php#L237) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/controllers/confirmapp.php#L88](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/controllers/confirmapp.php#L88) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L53](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L53) - [https://www.wordfence.com/threat-intel/vulnerabilities/id/75fc5df5-a774-4fe1-8452-d35ba7b69081?source=cve](https://www.wordfence.com/threat-intel/vulnerabilities/id/75fc5df5-a774-4fe1-8452-d35ba7b69081?source=cve) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L131](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L131) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L53](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L53) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L131](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L131) - [https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/vikappointments.php#L237](https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.21/vikappointments.php#L237) - [https://plugins.trac.wordpress.org/changeset?reponame=&old=3721264%40vikappointments&new=3721264%40vikappointments](https://plugins.trac.wordpress.org/changeset?reponame=&old=3721264%40vikappointments&new=3721264%40vikappointments) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)