CVE-2026-15282 json
Instant Appointment <= 1.2 - Unauthenticated Arbitrary File Upload
published 3mo ago modified 3mo ago also EUVD-2026-42790
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 3mo ago
Exploit prediction
1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- tenteeglobal Instant Appointment
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/097b1530-64fa-45b2-85f3-c6a2311405b5?source=cve
- plugins.trac.wordpress.org /browser/instant-appointment/trunk/includes/ajax/ajax_services.php#L3
- plugins.trac.wordpress.org /browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L584
- plugins.trac.wordpress.org /browser/instant-appointment/trunk/includes/front-end/ajax/login_ajax.php#L598
Sources
- CVE List CVE-2026-15282
- NVD CVE-2026-15282
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