CVE-2026-1555: 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…

PriorityP271critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.98%

57.9th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
owen	webstack	<= 1.2024	—

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