Critical severity9.8NVD Advisory· Published Jul 10, 2026· Updated Jul 14, 2026No known patch
CVE-2026-15282
No known patch is available for this vulnerability.
The affected plugin has been removed from the WordPress.org directory (reason: Security Issue), and no patched version is being distributed through the official directory. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.
CVE-2026-15282
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.
Affected products
1- Range: <=1.2
Patches
Vulnerability mechanics
References
4- plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/ajax/ajax_services.phpnvd
- plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.phpnvd
- plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.phpnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/097b1530-64fa-45b2-85f3-c6a2311405b5nvd
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