Vulnerabilities CVE-2026-15282

CVE-2026-15282

Critical

Open

TLP:CLEAR

Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload

NVD CVE.org

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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.

Details

CVSS Score: 9.8
EPSS Score ⓘ: 1.02%

60.1th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: Jul 10, 2026
Last Modified: Jul 14, 2026

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