CVE-2026-15282

Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload

Published Jul 10, 2026 CVSS 3.1 · 9.8 Critical EPSS 1.1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Tenteeglobal
Tenteeglobal instant Appointment
Wordpress
Wordpress wordpress
Vendors & Products Tenteeglobal
Tenteeglobal instant Appointment
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Description 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.
Title Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload
Weaknesses CWE-434
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Jul 14, 2026, 1:30 AM
Reserved
Jul 9, 2026, 3:48 PM
Status
Deferred
Published
Jul 10, 2026, 5:16 AM
Modified
Jul 14, 2026, 2:16 AM