by Kastro
Paper/Archive/CVE-2026-15282

CVE-2026-15282

tenteeglobal Instant Appointment — Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload

EPSS 1%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 65.1.651 × 2013.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

The Instant Appointment plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'insapp_upload_image_as_attachment' function in all versions up to, and including, 1.2. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected

ProductAffectedFixed inSource
Instant Appointment≤ 1.2–CNA

Scores by source

Wordfence (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refwordfence.com/threat-intel/vulnerabilities/id/097b1530-64fa-45b2-85f3-c6a2311405b5?source=cverefplugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/ajax/ajax_services.php#L3refplugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L584refplugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L598