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NVD CRITICAL: CVE-2026-1555 — The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to ...

·Source: NIST NVD

Updated:

Executive Summary

The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Analysis

The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. 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 Score: 9.8. Published: 2026-04-15T04:17:33.600.

Indicators of Compromise (1)

CVE (1)
CVE-2026-1555
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Apr 15, 2026. Verified by: NIST.

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