Vulnerability · Published Jul 11, 2026 · Assigned by Wordfence

CVE-2026-11426UnderConstructionPage PRO <= 5.76 - Authenticated (Subscriber+) Arbitrary File Read via template_thumbnail Parameter

Medium 6.5

In plain English

A medium-severity path traversal in Under Construction Page (Pro) from WebFactory. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 60.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
WebFactory	Under Construction Page (Pro)	0 – through 5.76

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

In plain English

Official description

Affected products (as reported)

References