CVE-2021-25094 PoC — Tatsu < 3.3.12 - Unauthenticated RCE

Source

https://github.com/xdx57/CVE-2021-25094

Associated Vulnerability

Title: Tatsu < 3.3.12 - Unauthenticated RCE (CVE-2021-25094)
Description:The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.

Description

Tatsu Plugin ZIP File add_custom_font unrestricted upload

Readme

# CVE-2021-25094
Tatsu Plugin ZIP File add_custom_font unrestricted upload
# usage
php p.php

File Snapshot

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