CVE-2023-31541

A unrestricted file upload vulnerability was discovered in the ‘Browse and upload images’ feature of the CKEditor v1.2.3 plugin for Redmine, which allows…

Critical · published June 13, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
72.8
In the wild
Unconfirmed
What it is

🔥 An unrestricted file upload vulnerability in CKEditor v1.2.3 for Redmine could let attackers drop any file they want onto your server! Think of it as a restaurant that allows anyone to deliver their own groceries without checking the contents — a recipe for disaster if someone decides to drop off spoiled ingredients! An attacker could sneak in malicious files, potentially leading to devastating consequences such as server compromise, data theft, or even a full-blown ransomware attack. With arbitrary files on your server, the integrity and security of your entire system could be hanging by a thread!

Put simply

Think of it as a restaurant that allows anyone to deliver their own groceries without checking the contents — a recipe for disaster if someone decides to drop off spoiled ingredients! This vulnerability allows unauthorized file uploads due to a lack of restrictions in the file upload feature of the CKEditor plugin. Attackers can exploit this by uploading harmful files that the server will accept and execute.

What to do

An attacker could sneak in malicious files, potentially leading to devastating consequences such as server compromise, data theft, or even a full-blown ransomware attack. With arbitrary files on your server, the integrity and security of your entire system could be hanging by a thread! Immediately patch CKEditor to the latest version or apply any available security updates. Additionally, review your file upload settings to enforce strict validation and restrict file types to only those necessary. Don't forget to monitor your logs for any suspicious activity! You’ve got this! Take action now, and you'll bolster your defenses against these sneaky vulnerabilities! 🛡️

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
0.01431 · 72.8th percentile
Published
2023-06-13T00:00Z
EPSS history
Timeline
  • 13 JUN 00:00Z
    A unrestricted file upload vulnerability was discovered in the ‘Browse and upload images’ feature of the CKEditor v1.2.3 plugin for Redmine, which allows…
    cvelistv5