CVE-2026-15282criticalCWE-434

CVE-2026-15282: critical vulnerability in tenteeglobal Instant Appointment

Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload

Published · Updated

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.8epss 1.1%
from disclosure to weapon1 days
Published on NVDJul 10
1st PoC+1d
exploitation probability
1.1%top 35% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
tenteeglobal · Instant Appointment
public PoCs found — 1
githubgithub.com/shinthink/CVE-2026-15282★ 0
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — tenteeglobal Instant Appointment

In the same product, most dangerous first.

CVE-2024-54361CRITICALWordPress Instant Appointment plugin <= 1.2 - SQL Injection vulnerabilityEPSS 0.5%CVE-2025-23672HIGHWordPress Instant Appointment plugin <= 1.2 - Reflected Cross Site Scripting (XSS) vulnerabilityEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/ajax/ajax_services.php#L3https://plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L584https://plugins.trac.wordpress.org/browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L598https://www.wordfence.com/threat-intel/vulnerabilities/id/097b1530-64fa-45b2-85f3-c6a2311405b5?source=cve