How ESOF helps in detecting Cross-Site scripting vulnerabilities

Cross-site scripting vulnerability allows the hacker to come to terms with the user’s interactions with a vulnerable application. It allows attackers to circumvent the same-origin policy intended to keep websites separate from one another. A recent cross-site scripting vulnerability lets an attacker masquerade as a victim user and perform any actions or access any data that the victim can serve. If the attacker gains access to the victim’s privileged account information within the application, they can take control over all data and functionality of that application.

How Cross-site Scripting vulnerability works.?

Cross-site scripting vulnerability is performed by controlling an unsafe website so that it brings back the malicious JavaScript to users. An attacker uses cross-site scripting to exploit a vulnerability in a website by redirecting visitors to malicious JavaScript. So, when the malicious code executes in the victim’s browser, hackers can ultimately settle their interaction with the application. A hacker can use the exposure to build a  proposition that another application user provides will give rise to Javascript code. To perform in the user browser in the context of the user’s session with the application. 

Furthermore, hackers can perform various activities, such as abducting the victim’s session token or logging into other credentials and performing arbitrary activities with the victim’s account.

It can induce users to issue the attacker’s crafted requests in various ways. Like, hackers sending malicious URLs in emails or messages. Or by submitting their link to the popular websites that allow content writing. The security impact of the recent cross-site scripting vulnerability is dependent upon the nature of applications. It contains the same kind of data and functionality that belongs to the same domain and enterprise. Attackers could use the vulnerability to the other applications that reside on a part that can access cookies for more security-critical applications. Then the exposure is at high risk.

How does ESOF fix the cross-site scripting vulnerabilities.?

Recent Cross-site scripting attacks can be prevented when the user-controllable data is copied into other application responses using two defense layers. Input should first be validated strictly and given this kind of format. This way, the input format goes like a personal name consisting of alphabets, a small range of typographical characters, year of the birth should contain only four numbers, exact email address.

Input gets rejected if it fails the validation. Also, user input should be HTML-encoded into application responses. Therefore, it is essential to review the equipped HTML to validate that it does not use any hazardous syntax- it is a non-trivial task.


ESOF is an advanced scanner that helps you find recentcross-scripting vulnerabilities quickly so that you can fix them before the attackers exploit them.

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