CVE-2019-11887

SimplyBook.me through 2019-05-11 does not properly restrict File Upload which could allow remote code execution

published May 17, 2019

CVSS
—
EPSS
2%
Percentile
83.3
In the wild
Unconfirmed
What it is

⚠️ A simple oversight in file uploads is all it takes! SimplyBook.me versions through May 11, 2019, allow an attacker to execute code remotely — like letting anyone send unfiltered mail to your inbox! 📥 Think of it as a cafe that allows customers to drop any package at the counter without checking its contents. If an attacker slips in a dangerous package disguised as a cake, they can wreak havoc inside the café! 🍰 If exploited, an attacker could remotely execute malicious code, potentially compromising the server and gaining unauthorized access to sensitive data. This could lead to data breaches or further attacks on the network, causing devastating consequences.

Put simply

Think of it as a cafe that allows customers to drop any package at the counter without checking its contents. If an attacker slips in a dangerous package disguised as a cake, they can wreak havoc inside the café! 🍰 This vulnerability arises from insufficient restrictions on file uploads in SimplyBook.me, allowing attackers to upload malicious files that execute code on the server.

What to do

If exploited, an attacker could remotely execute malicious code, potentially compromising the server and gaining unauthorized access to sensitive data. This could lead to data breaches or further attacks on the network, causing devastating consequences. To protect against this vulnerability, promptly update SimplyBook.me to the latest version that addresses this issue. Additionally, implement strict file validation checks to ensure only safe file types are uploaded. Regularly audit your upload handling processes to maintain security. You've got this! Take action now to safeguard your applications. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02314 · 83.3th percentile
Published
2019-05-17T16:53Z
EPSS history
Timeline
  • 17 MAY 16:53Z
    SimplyBook.me through 2019-05-11 does not properly restrict File Upload which could allow remote code execution
    cvelistv5