CVE-2025-54693CWE-434

WordPress Form Block Plugin <= 1.5.5 - Arbitrary File Upload Vulnerability

Critical · published August 14, 2025

CVSS v3.1
9.0
EPSS
0%
Percentile
20.9
In the wild
Unconfirmed
What it is

🚨 A web shell can slip right into your server without a second glance! This unrestricted file upload vulnerability in the Epiphyt Form Block could turn your site into an attacker's playground. 🔥 Think of a restaurant that allows anyone to enter with any type of food item. A sneaky chef could bring in a dangerous dish, like spoiled fish, and then serve it without any checks! Similarly, this vulnerability allows harmful files to infiltrate the web server without scrutiny. An attacker could upload a malicious web shell, granting them full control of your server. From there, they can steal sensitive data, manipulate your site, or even launch attacks on other systems—absolutely devastating if exploited! Don't let your business become an easy target.

Put simply

Think of a restaurant that allows anyone to enter with any type of food item. A sneaky chef could bring in a dangerous dish, like spoiled fish, and then serve it without any checks! Similarly, this vulnerability allows harmful files to infiltrate the web server without scrutiny. This vulnerability allows unrestricted file uploads in the Epiphyt Form Block, meaning that attackers can upload web shells or other dangerous file types without any validation. This impacts versions n/a through 1.5.5, putting many instances at risk.

What to do

An attacker could upload a malicious web shell, granting them full control of your server. From there, they can steal sensitive data, manipulate your site, or even launch attacks on other systems—absolutely devastating if exploited! Don't let your business become an easy target. To protect your site, update the Epiphyt Form Block to the latest version immediately! Implement strict file type validation and consider disabling file uploads altogether unless absolutely necessary. Regularly audit your web applications to catch similar vulnerabilities early. You've got this! With these steps, you can lock down your server and secure your web space in no time. 🛡️

The record
Technical detail
CVSS v3.1
9.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00294 · 20.9th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-08-14T10:34Z
EPSS history
Timeline
  • 14 AUG 10:34Z
    WordPress Form Block Plugin <= 1.5.5 - Arbitrary File Upload Vulnerability
    cvelistv5