CVE-2020-18166

Unrestricted File Upload in LAOBANCMS v2.0 allows remote attackers to upload arbitrary files by attaching a file with a ".jpg.php" extension to the component…

published May 14, 2021

CVSS
—
EPSS
2%
Percentile
76.8
In the wild
Unconfirmed
What it is

🚨 Unrestricted file uploads can lead to serious trouble! Just imagine an attacker sneaking in a malicious file disguised as a harmless image — like a wolf in sheep's clothing. 🐺💔 Think of this vulnerability like a restaurant that allows anyone to toss whatever they want into the kitchen, including spoiled food. If the chef isn’t diligent, that rotten dish could end up on a customer's plate! An attacker could exploit this flaw to upload any arbitrary file, potentially leading to remote code execution. This could allow them to take control of the server, steal sensitive data, or even deface the website. The possibilities are alarming!

Put simply

Think of this vulnerability like a restaurant that allows anyone to toss whatever they want into the kitchen, including spoiled food. If the chef isn’t diligent, that rotten dish could end up on a customer's plate! This vulnerability in LAOBANCMS v2.0 allows remote attackers to upload files with insecure extensions like '.jpg.php' via the 'admin/wenjian.php' component, bypassing necessary checks for file types.

What to do

An attacker could exploit this flaw to upload any arbitrary file, potentially leading to remote code execution. This could allow them to take control of the server, steal sensitive data, or even deface the website. The possibilities are alarming! To mitigate this risk, immediately restrict file uploads to only allow trusted file types and implement strict validation checks to block potentially harmful extensions. Consider updating LAOBANCMS to a more secure version if available. You've got this! By taking these actions, you can keep your systems secure and protect your users. 🛡️✨

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01684 · 76.8th percentile
Published
2021-05-14T13:09Z
EPSS history
Timeline
  • 14 MAY 13:09Z
    Unrestricted File Upload in LAOBANCMS v2.0 allows remote attackers to upload arbitrary files by attaching a file with a ".jpg.php" extension to the component…
    cvelistv5