What is CVE-2026-14553?

CVE-2026-14553 is a high-severity vulnerability in Zportals, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2026-08-05.

How severe is CVE-2026-14553?

High severity. CVSS v3 base score is 8.1 out of 10.

Arbitrary file upload in Zportals

CVE-2026-14553

The zportals WordPress plugin before 6.3.4 does not properly validate uploaded files, trusting the client-supplied content type and preserving the original file extension, allowing any authenticated user (Subscriber or higher) to upload arbitrary PHP files and achieve remote code execution.

Vulnerability class: Unrestricted File Upload

Published 2026-08-05 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (49.2th percentile), scored 2026-11-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Zportals — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

wpscan.com/vulnerability/02c83708-8f2f-48f8-b73e-df37a42ab360/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-14553?: CVE-2026-14553 is a high-severity vulnerability in Zportals, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2026-08-05.
How severe is CVE-2026-14553?: High severity. CVSS v3 base score is 8.1 out of 10.