module

WordPress StoryChief Plugin Unauthenticated RCE

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Disclosed
Aug 4, 2025
Created
Feb 19, 2026

Description

This module exploits an unauthenticated arbitrary file upload
vulnerability in the StoryChief WordPress plugin

The plugin exposes a webhook endpoint at
/wp-json/storychief/webhook which accepts a forged HMAC.
Because the plugin uses an empty secret for HMAC validation,
attackers can compute a valid MAC and force WordPress to
download and store attacker-controlled PHP content inside
the uploads directory, resulting in remote code execution.

Authors

xpl0dec
Nayera

Platform

PHP

Architectures

php

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use exploit/multi/http/wp_plugin_story_chef_file_upload
    msf exploit(wp_plugin_story_chef_file_upload) > show targets
        ...targets...
    msf exploit(wp_plugin_story_chef_file_upload) > set TARGET < target-id >
    msf exploit(wp_plugin_story_chef_file_upload) > show options
        ...show and set options...
    msf exploit(wp_plugin_story_chef_file_upload) > exploit
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