Path Traversal in Webfactory Under Construction Page (Pro)
CVE-2026-11426
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (37.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Webfactory Under Construction Page (Pro) — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-11426?
- CVE-2026-11426 is a medium-severity vulnerability in Webfactory Under Construction Page (Pro), classified under Path Traversal. CVSS score: 6.5/10. Published 2026-07-11.
- How severe is CVE-2026-11426?
- Medium severity. CVSS v3 base score is 6.5 out of 10.