When choosing a chart, users are redirected to the xss-protection page and are prompted to enable or disable xss filtering. By sending an HTTP request with malicious content, an attacker can force the charts tab to execute arbitrary Javascript. A reflected cross-site scripting vulnerability allows attackers to inject malicious script into web applications that process user-supplied data. To exploit this vulnerability, an attacker needs to send a specially-crafted request to the application that is used by users to view data. When choosing a chart, users are redirected to the xss-protection page and are prompted to enable or disable xss filtering. By sending an HTTP request with malicious content, an attacker can force the charts tab to execute arbitrary Javascript. A reflected cross-site scripting vulnerability allows attackers to inject malicious script into web applications that process user-supplied data. To exploit this vulnerability, an attacker needs to send a specially-crafted request to the application that is used by users to view data. An attacker can leverage various methods to send malicious requests, such as injecting data directly or via a vulnerable third party application. A user may accidentally click on a malicious link or follow a malicious advertisement on social media. An attacker can also send a malicious link via email or message.
Impact of Cross-Site Scripting
The attacker can leverage various methods to send malicious requests, such as injecting data directly or via a vulnerable third party application. A user may accidentally click on a malicious link or follow a malicious advertisement on social media. An attacker can also send a malicious link via email or message. So, what is the impact of cross-site scripting? Your website could be defaced, your users’ credentials could be stolen, and your data could be compromised.
The vulnerability is caused by the use of outdated versions of the jQuery library that do not properly validate input before using it in an XSS attack.
Finding and exploiting XSS vulnerabilities
XSS vulnerabilities are often hard to identify because they can be difficult to reproduce consistently. One way to detect XSS vulnerabilities is through user-supplied data. For example, if a webpage takes input from the user and displays it back in the page, an attacker can inject malicious script into the user-provided data by injecting it into the URL. This vulnerability is of critical concern for websites processing user-supplied content and displaying that content back to the users as part of their application.
Investigating XSS vulnerabilities can be a tricky process because it's necessary to find exactly how the vulnerability works and what makes it exploitable. When investigating XSS vulnerabilities, it's important for security researchers to pay attention to both user-supplied data and how invalid input may trigger unexpected behavior that could cause unwanted actions on behalf of an attacker. A good way to start is by examining what happens when different types of invalid input are provided. For example, if an attacker sends an invalid username or password, they should see different output depending on what happens with that input within your application's logic.
Remote Code Execution
If an attacker is able to execute malicious code, they can do anything from stealing user data to hijacking a session. This vulnerability allows for remote code execution on the victim’s machine.
An attacker could exploit this vulnerability by injecting malicious Javascript into the vulnerable web application that will cause the site to load and trigger XSS when a user loads it.
Vulnerable to Cross-Site Scripting
The vulnerability allows attackers to inject malicious script into web applications that process user-supplied data. To exploit this vulnerability, an attacker needs to send a specially-crafted request to the application that is used by users to view data. An attacker can leverage various methods to send malicious requests, such as injecting data directly or via a vulnerable third party application. A user may accidentally click on a malicious link or follow a malicious advertisement on social media. An attacker can also send a malicious link via email or message.
Timeline
Published on: 08/22/2022 19:15:00 UTC
Last modified on: 08/23/2022 19:52:00 UTC