CVE-2025-63695

DzzOffice v2.3.7 and before is vulnerable to Arbitrary File Upload in /dzz/system/ueditor/php/controller.php

Critical · published November 18, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
35.2
In the wild
Unconfirmed
What it is

🚨 An arbitrary file upload flaw in DzzOffice 2.3.7 and earlier could let attackers upload anything they want — think a thief slipping a fake package into your delivery without a signature check! 🔥 This vulnerability is like a restaurant accepting any dish a chef submits without checking the order — one wrong item could spoil the entire menu. An attacker can bypass restrictions, leading to malicious files being uploaded without anyone noticing! If exploited, an attacker could upload harmful scripts or files that could take control of your server, leading to data breaches, unauthorized access, or even a complete takeover of your system. The risks are staggering, and the potential fallout is absolutely devastating!

Put simply

This vulnerability is like a restaurant accepting any dish a chef submits without checking the order — one wrong item could spoil the entire menu. An attacker can bypass restrictions, leading to malicious files being uploaded without anyone noticing! This vulnerability allows attackers to exploit the file upload feature in DzzOffice by bypassing validation checks in /dzz/system/ueditor/php/controller.php, enabling unauthorized file uploads.

What to do

If exploited, an attacker could upload harmful scripts or files that could take control of your server, leading to data breaches, unauthorized access, or even a complete takeover of your system. The risks are staggering, and the potential fallout is absolutely devastating! Upgrade DzzOffice to version 2.3.8 or later immediately to patch this critical vulnerability. Additionally, implement strict file type validations and ensure all uploaded files are scanned for malicious content to bolster your defenses. You've got this! Follow these steps and secure your system from this threat today. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00420 · 35.2th percentile
Published
2025-11-18T00:00Z
EPSS history
Timeline
  • 18 NOV 00:00Z
    DzzOffice v2.3.7 and before is vulnerable to Arbitrary File Upload in /dzz/system/ueditor/php/controller.php
    cvelistv5