CVE-2026-22241CWE-434

Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)

High · published January 8, 2026

CVSS v4.0
7.3
EPSS
3%
Percentile
88.3
In the wild
Unconfirmed
What it is

🚨 An admin with a questionable gift for disasters can wreak havoc here! Before version 4.2, the Open eClass platform had a file upload vulnerability that’s as easy as pie — upload any file without checks and BAM, code execution on the server! 🔥 Think of it like a hotel that lets guests sneak any package in without checking what's inside. That mystery box could be filled with anything, from harmless goodies to a ticking time bomb! An attacker with admin access could upload malicious files, leading to remote code execution on the server. This could allow them to take full control of the server, wipe data, or install malware, turning your trusted platform into a hacker's playground!

Put simply

Think of it like a hotel that lets guests sneak any package in without checking what's inside. That mystery box could be filled with anything, from harmless goodies to a ticking time bomb! This vulnerability allows an attacker with administrative privileges to upload arbitrary files through the theme import functionality, due to a lack of validation or sanitization of files within uploaded zip archives.

What to do

An attacker with admin access could upload malicious files, leading to remote code execution on the server. This could allow them to take full control of the server, wipe data, or install malware, turning your trusted platform into a hacker's playground! To secure your system, upgrade to version 4.2 immediately. Additionally, review your file upload procedures to ensure proper validation and sanitization of uploaded files. Implement monitoring for unauthorized uploads to catch any further attempts! You've got this! By following these steps, you'll transform into a security hero and keep your platform safe! 🛡️

The record
Technical detail
CVSS v4.0
7.3 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EPSS
0.03262 · 88.3th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-01-08T15:07Z
EPSS history
Timeline
  • 08 JAN 15:07Z
    Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)
    cvelistv5