CVE-2026-11426

Medium

Description

The UnderConstructionPage PRO plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 5.76. This is due to the plugin accepting arbitrary local file paths in the template_thumbnail parameter and copying their contents into a publicly accessible uploads file. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read arbitrary files on the server, which can contain sensitive information.

SeverityMedium
CVSS6.5
Exploit probability—
ProductUnder Construction Page (Pro)
PublishedJul 11, 2026
First seenJul 11, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
WebFactory Under Construction Page (Pro)v ≤ 5.76—

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