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Tool Directory

CVE-2026-13158

HighPublished

Everest Toolkit <= 1.2.3 - Admin+ Arbitrary File Upload

Published: Aug 1, 2026
Updated: Aug 5, 2026
Assigning CNA: WPScan
Evidence observed: Aug 7, 2026

Primary CVSS

7.2/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 28.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The Everest Toolkit WordPress plugin through 1.2.3 does not validate the type of files uploaded during demo-content import (the WordPress file-type test is disabled), allowing high-privilege users (Administrator by default, including non-super-admin site administrators on multisite) to upload executable PHP files to the uploads directory.

Sources

CVE-2026-13158PoC
Proof-of-concept exploit and technical advisory for an Admin+ arbitrary file upload to remote code execution vulnerability in Everest Toolkit WordPress plugin (<= 1.2.3), including vulnerable code analysis, Python PoC, and hardening guidance.

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