CVE-2026-16985: CWE-434 Unrestricted Upload of File with Dangerous Type in Squeeze
The Squeeze WordPress plugin before 1.7.12 does not validate the file type or extension of the per-size image data written by one of its attachment-update actions, allowing users with the upload_files capability (Author and above) to write an executable PHP file into the uploads directory and achieve remote code execution.
AI Analysis
Technical Summary
CVE-2026-16985 describes an unrestricted file upload vulnerability (CWE-434) in the Squeeze WordPress plugin versions prior to 1.7.12. The plugin fails to validate the file type or extension of per-size image data during attachment-update actions. As a result, authenticated users with the upload_files capability can upload executable PHP files into the uploads directory, potentially enabling remote code execution.
Potential Impact
Successful exploitation allows an authenticated user with upload_files capability to execute arbitrary PHP code on the server, leading to full compromise of the affected WordPress installation. This includes complete confidentiality, integrity, and availability impact as indicated by the CVSS score of 8.8 (high severity).
Mitigation Recommendations
No official patch or remediation guidance is currently confirmed. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict upload_files capability to trusted users only and monitor for suspicious uploads.
CVE-2026-16985: CWE-434 Unrestricted Upload of File with Dangerous Type in Squeeze
Description
The Squeeze WordPress plugin before 1.7.12 does not validate the file type or extension of the per-size image data written by one of its attachment-update actions, allowing users with the upload_files capability (Author and above) to write an executable PHP file into the uploads directory and achieve remote code execution.
CVSS v3.1
Score 8.8high
Affected software
Squeeze
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16985 describes an unrestricted file upload vulnerability (CWE-434) in the Squeeze WordPress plugin versions prior to 1.7.12. The plugin fails to validate the file type or extension of per-size image data during attachment-update actions. As a result, authenticated users with the upload_files capability can upload executable PHP files into the uploads directory, potentially enabling remote code execution.
Potential Impact
Successful exploitation allows an authenticated user with upload_files capability to execute arbitrary PHP code on the server, leading to full compromise of the affected WordPress installation. This includes complete confidentiality, integrity, and availability impact as indicated by the CVSS score of 8.8 (high severity).
Mitigation Recommendations
No official patch or remediation guidance is currently confirmed. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict upload_files capability to trusted users only and monitor for suspicious uploads.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-24T08:43:45.499Z
- State
- PUBLISHED
Threat ID: 6a7972aebf8831d5392fafe6
Added to database: 08/10/2026, 06:41:50 UTC
Last enriched: 08/17/2026, 15:10:33 UTC
Last updated: 09/25/2026, 01:47:41 UTC
Views: 94
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