CVE-2025-58996CWE-434unrestricted-file-upload

CVE-2025-58996

Critical · published November 6, 2025

CVSS v3.1
9.1
EPSS
0%
Percentile
38.5
In the wild
Unconfirmed
What it is

🚨 An unrestricted file upload vulnerability in Helmut Wandl's Advanced Settings could let attackers drop a web shell on your server—talk about an open invitation! 🔥 This flaw is like leaving a back door wide open in a secured building, allowing anyone to waltz in and set up shop without a key. It’s the ultimate risk because the attackers can control everything once they’re inside! If an attacker exploits this vulnerability, they could upload malicious files, install web shells, and gain complete control of your server. This could lead to devastating data breaches, service disruptions, or even a full takeover of your web environment. Yikes!

Put simply

This flaw is like leaving a back door wide open in a secured building, allowing anyone to waltz in and set up shop without a key. It’s the ultimate risk because the attackers can control everything once they’re inside! This vulnerability allows unauthorized users to upload potentially harmful files due to a lack of proper validation in the Advanced Settings component of versions up to and including 3.1.1. This means attackers can easily introduce malicious scripts directly onto the server.

What to do

If an attacker exploits this vulnerability, they could upload malicious files, install web shells, and gain complete control of your server. This could lead to devastating data breaches, service disruptions, or even a full takeover of your web environment. Yikes! To mitigate this risk, immediately update the Advanced Settings plugin to the latest version that patches this issue. Additionally, implement strict file type restrictions and ensure that uploaded files are scanned for malicious content before processing them. Don't wait! You've got this! Follow these steps, and you'll be well on your way to securing your server against this threat. 🛡️

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00454 · 38.5th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-11-06T21:16Z
References (1)
EPSS history
Timeline
  • 06 NOV 15:54Z
    WordPress Advanced Settings Plugin <= 3.1.1 - Arbitrary File Upload Vulnerability
    cvelistv5