CVE-2026-87115
VikAppointments Services Booking Calendar <= 1.2.21 - Unauthenticated Arbitrary File Deletion via 'old_vapcfN' Parameter
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Public exploit
- None on Exploit-DB
CISA SSVC
- Exploitation: none
- Automatable: yes
- Technical impact: partial
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).
SSVC documentationSummary
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.
Affected versions
- e4jvikwp VikAppointments Services Booking Calendar
through 1.2.21
References 10
plugins.trac.wordpress.org
- browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L53
- browser/vikappointments/tags/1.2.19/site/helpers/libraries/customfields/types/file.php#L131
- browser/vikappointments/tags/1.2.19/site/controllers/confirmapp.php#L88
- browser/vikappointments/tags/1.2.19/vikappointments.php#L237
- browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L131
- browser/vikappointments/tags/1.2.21/site/helpers/libraries/customfields/types/file.php#L53
- browser/vikappointments/tags/1.2.21/site/controllers/confirmapp.php#L88
- browser/vikappointments/tags/1.2.21/vikappointments.php#L237
- changeset?reponame=&old=3721264%40vikappointments&new=3721264%40vikappointments