The document discusses common software vulnerabilities in JavaScript, including cross-site scripting, cross-site request forgery, clickjacking, broken authentication, code injection, insecure direct object references, and security misconfiguration. It notes that while JavaScript is widely used, vulnerabilities can be exploited by attackers, so developers must be aware of these issues and implement proper security practices. The conclusion recommends a comprehensive code review to identify and mitigate potential security problems.

1. Application Security
Common Software Vulnerabilities associated with JavaScript
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2. Javascript
JavaScript is a popular programming language used for building web applications.
However, just like any other programming language, it has some common software
vulnerabilities that can be exploited by attackers. In this article, we will explore some of
the most common software vulnerabilities associated with JavaScript programming
language.
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3. Cross-site scripting (XSS)
Cross-site scripting (XSS) is a type of security vulnerability that allows attackers to
inject malicious scripts into web pages viewed by other users. These scripts can steal
sensitive information, such as login credentials, and can also be used to perform
unauthorized actions on behalf of the user.
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4. Cross-site request forgery (CSRF)
Cross-site request forgery (CSRF) is a type of security vulnerability that allows
attackers to trick users into performing actions that they did not intend to. This is done
by injecting a malicious request into a legitimate website that the user is currently
logged into. When the user performs an action on the website, the malicious request is
executed, and the attacker can perform unauthorized actions on behalf of the user.
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5. Clickjacking
Clickjacking is a type of security vulnerability that allows attackers to trick users into
clicking on a button or link that is hidden or disguised. This is done by overlaying a
legitimate website with a transparent layer that contains the hidden button or link.
When the user clicks on the visible button or link, they are actually clicking on the
hidden button or link, which can execute malicious actions
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6. Broken authentication and session
management
Broken authentication and session management is a type of security vulnerability that
allows attackers to bypass authentication and gain access to sensitive information or
perform unauthorised actions on behalf of the user. This can happen when the
authentication and session management mechanisms are not implemented correctly
or are not secure enough.
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7. Code injection
Code injection is a type of security vulnerability that allows attackers to inject malicious
code into a web application. This can happen when the application does not properly
validate user input, and the attacker is able to inject their own code into the
application.
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8. Insecure direct object references
Insecure direct object references is a type of security vulnerability that allows attackers
to access sensitive information or perform unauthorised actions on behalf of the user
by manipulating direct object references. This can happen when the application does
not properly validate user input or does not properly secure sensitive data.
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9. Security misconfiguration
Security misconfiguration is a type of security vulnerability that occurs when a web
application is not configured correctly. This can happen when default settings are not
changed, unnecessary services or features are enabled, or security settings are not
set up properly.
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10. Conclusion
JavaScript is a powerful programming language that is used by developers all over
the world. However, it is important to be aware of the common software
vulnerabilities associated with it and take appropriate measures to prevent them. By
following best practices for web application security, developers can help keep their
applications and users safe from attackers.
Don't leave the security of your web application to chance, With my comprehensive
code review process, I can identify potential security issues and provide actionable
recommendations for mitigating them.
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