Arbitrary file upload in Squeeze

CVE-2026-16985

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.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-16985: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Squeeze — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16985?
CVE-2026-16985 is a high-severity vulnerability in Squeeze, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-08-10.
How severe is CVE-2026-16985?
High severity. CVSS v3 base score is 8.8 out of 10.