CVE-2025-7441: StoryChief <= 1.0.42 - Unauthenticated Arbitrary File Upload

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 49.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-08-16 · updated 2026-06-17
Weakness: CWE-434

Description

The StoryChief plugin for WordPress is vulnerable to arbitrary file uploads in all versions up to, and including, 1.0.42. This vulnerability occurs through the /wp-json/storychief/webhook REST-API endpoint that does not have sufficient filetype validation. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

StoryChief: through 1.0.42

References

https://plugins.trac.wordpress.org/browser/story-chief/trunk/includes/tools.php#L75
https://plugins.trac.wordpress.org/changeset/3344874/
https://www.wordfence.com/threat-intel/vulnerabilities/id/979efaa4-10f1-4c7f-b4b0-5a41678c9d66?source=cve

Get alerted when CVE-2025-7441 or the next vulnerability affects your stack