CVE-2022-2925: Appwrite Vulnerable to Cross-site Scripting
Summary
CVE-2022-2925: Appwrite Vulnerable to Cross-site Scripting. Affects appwrite/server-ce versions < 1.0.0-RC1. Fixed in 1.0.0-RC1. How to fix ↓
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Background
Appwrite is an open-source backend server that helps developers build and deploy applications easily. It provides various features such as user authentication, storage, and database management. The vulnerability in Appwrite allows for stored cross-site scripting (XSS) attacks in usernames, function names, storage bucket names, and database collection names.
Vulnerability Detail
The stored XSS vulnerability in Appwrite can be exploited by an attacker to inject malicious scripts into the application's user interface. This can lead to various consequences, including the theft of sensitive user information, session hijacking, and unauthorized actions on behalf of the user. The vulnerability is rated as moderate severity with a CVSS score of 5.4.
How To Fix
Minimum fixed version
1.0.0-RC1
This is the first release that contains the fix.
composer require appwrite/server-ce:1.0.0-RC1Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, developers can sanitize and validate user input to prevent the execution of malicious scripts. This can be done by implementing input validation and output encoding techniques. Here is an example of input validation using PHP:
$input = $_POST['username'];
if (!preg_match('/^[a-zA-Z0-9]+$/', $input)) {
// Handle invalid input
}
Conclusion
Appwrite is vulnerable to stored cross-site scripting (XSS) attacks in various input fields. It is crucial for developers to upgrade to version 1.0.0-RC1 or later of the 'appwrite/server-ce' package to fix this vulnerability. Additionally, implementing input validation and output encoding techniques can provide temporary protection against potential attacks. For further assistance and support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for appwrite/server-ce →
FAQ
Appwrite is an open-source backend server that simplifies application development and deployment. It provides various features such as user authentication, storage, and database management.
Stored cross-site scripting (XSS) is a type of vulnerability that allows an attacker to inject malicious scripts into a website or application. These scripts are then executed by unsuspecting users, leading to potential security breaches.
The Appwrite XSS vulnerability can result in the theft of sensitive user information, session hijacking, and unauthorized actions on behalf of the user. It poses a moderate level of risk to the security of affected applications.
To fix the Appwrite XSS vulnerability, it is recommended to upgrade to version 1.0.0-RC1 or later of the 'appwrite/server-ce' package. This version includes the necessary security patches to mitigate the vulnerability.
As a temporary workaround, developers can sanitize and validate user input to prevent the execution of malicious scripts. Implementing input validation and output encoding techniques can help mitigate the risk.
Related vulnerabilities
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