CVE-2021-47976

Published May 16th, 2026

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CVSS v3

8.8

HIGH

CVSS v2

N/A

Affected

PROJECT

Description

TextPattern CMS 4.9.0-dev contains a remote code execution vulnerability that allows authenticated attackers to upload arbitrary PHP files by exploiting the plugin upload functionality. Attackers can authenticate, retrieve a CSRF token from the plugin event page, and upload malicious PHP files to the textpattern/tmp/ directory for code execution.

textpattern/textpattern

A flexible, elegant, fast and easy-to-use content management system written in PHP.

GitHub

871