CVE-2026-15282: CWE-434 Unrestricted Upload of File with Dangerous Type in tenteeglobal Instant Appointment
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.
AI Analysis
Technical Summary
CVE-2026-15282 is a critical vulnerability in the Instant Appointment plugin for WordPress by tenteeglobal. The issue arises from the lack of file type validation in the 'insapp_upload_image_as_attachment' function, enabling unauthenticated attackers to upload arbitrary files. This unrestricted file upload vulnerability (CWE-434) affects all versions up to and including 1.2 of the plugin. Successful exploitation may allow remote code execution on the server hosting the vulnerable plugin. As of the published date, no official fix or patch has been disclosed.
Potential Impact
An attacker can upload arbitrary files without authentication, which may lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score of 9.8 reflects the critical severity and the potential for full system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the plugin's upload functionality and consider disabling the plugin if possible to prevent exploitation.
CVE-2026-15282: CWE-434 Unrestricted Upload of File with Dangerous Type in tenteeglobal Instant Appointment
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.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15282 is a critical vulnerability in the Instant Appointment plugin for WordPress by tenteeglobal. The issue arises from the lack of file type validation in the 'insapp_upload_image_as_attachment' function, enabling unauthenticated attackers to upload arbitrary files. This unrestricted file upload vulnerability (CWE-434) affects all versions up to and including 1.2 of the plugin. Successful exploitation may allow remote code execution on the server hosting the vulnerable plugin. As of the published date, no official fix or patch has been disclosed.
Potential Impact
An attacker can upload arbitrary files without authentication, which may lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system. The CVSS v3.1 base score of 9.8 reflects the critical severity and the potential for full system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the plugin's upload functionality and consider disabling the plugin if possible to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-07-09T15:48:27.727Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50809268715ace43063675
Added to database: 07/10/2026, 05:18:10 UTC
Last enriched: 07/10/2026, 05:47:45 UTC
Last updated: 07/10/2026, 07:55:06 UTC
Views: 7
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