Threat intelligence

Everest Toolkit <= 1.2.3 - Authenticated (Admin+) Arbitrary File Upload

CVE-2026-13158 · everest-toolkit

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Everest Toolkit at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Everest Toolkit <= 1.2.3 - Authenticated (Admin+) Arbitrary File Upload
Affected software: everest-toolkit(Plugin)
Affected versions: ≤ 1.2.3
Authentication: Authenticated (see advisory title)
Vulnerability type: Remote code execution
CVE: CVE-2026-13158
Published: 17 July 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: May allow attackers to run arbitrary code on the server if exploited.
Source: Data imported from Wordfence Intelligence (advisory a6ae2701-4fd6-475b-a589-65d314981807). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Everest Toolkit version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Everest Toolkit advisoriesBack to catalog