CVE-2021-31635

Server-Side Template Injection (SSTI) vulnerability in jFinal v.4.9.08 allows a remote attacker to execute arbitrary code via the template function

published June 26, 2023

CVSS
—
EPSS
1%
Percentile
68.1
In the wild
Unconfirmed
What it is

⚡ A sneaky Server-Side Template Injection (SSTI) flaw lurks in jFinal v.4.9.08, letting remote attackers execute arbitrary code with a single template function call! 🔥 Think of the template function as a chef's special recipe book. If a mischievous diner can tamper with the recipe, they could potentially alter the entire dish presented to everyone at the table! 🍽️ With this vulnerability, an attacker could gain the ability to execute any code on the server. This means they could manipulate data, steal sensitive information, or even take full control of the application, leaving your defenses in shambles!

Put simply

Think of the template function as a chef's special recipe book. If a mischievous diner can tamper with the recipe, they could potentially alter the entire dish presented to everyone at the table! 🍽️ This SSTI vulnerability in jFinal allows an attacker to inject malicious code via the template rendering function, bypassing normal security controls and executing unauthorized commands directly on the server.

What to do

With this vulnerability, an attacker could gain the ability to execute any code on the server. This means they could manipulate data, steal sensitive information, or even take full control of the application, leaving your defenses in shambles! To protect your application, upgrade jFinal to the latest version as soon as possible. Additionally, validate and sanitize all user inputs to prevent injection attacks from occurring. Regularly review your code for any risky template usage! You've got this! Take these steps to fortify your defenses and keep your applications safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01206 · 68.1th percentile
Published
2023-06-26T00:00Z
EPSS history
Timeline
  • 26 JUN 00:00Z
    Server-Side Template Injection (SSTI) vulnerability in jFinal v.4.9.08 allows a remote attacker to execute arbitrary code via the template function
    cvelistv5