Instead, the users of the web application are the ones at risk.

A cross-site scripting attack is a kind of attack on web applications in which attackers try to inject malicious scripts to perform malicious actions on trusted websites. In cross-site scripting, malicious code executes on the browser side and affects users. The embedded tags become a permanent feature of the page, causing the browser to parse them with the rest of the source code every time the page is opened.From this point on, every time the page is accessed, the HTML tag in the comment will activate a JavaScript file, which is hosted on another site, and has the ability to steal visitors’ session cookies.Using the session cookie, the attacker can compromise the visitor’s account, granting him easy access to his personal information and credit card data. Since cross-site code is a staple of the modern web, cross-site scripting has become one of the most frequently reported cyber-security vulnerabilities, and cross-site scripting attacks have hit major sites such as YouTube, Facebook, and Twitter. Read my review here Gartner Magic Quadrant for Web Application FirewallsFive Ways Imperva Surpasses the Competition for Web Application SecurityAustralian Cyber Attack Vectors Blocked Out of the Box by Imperva WAFThe Anatomy of Massive Application Layer DDoS Attacks Every time the infected page is viewed, the malicious script is transmitted to the victim’s browser.While browsing an e-commerce website, a perpetrator discovers a vulnerability that allows HTML tags to be embedded in the site’s comments section. In the case of XSS, most will rely on signature based filtering to identify and block malicious requests.In accordance with industry best-practices, Imperva’s cloud Imperva cloud WAF is offered as a managed service, regularly maintained by a team of security experts who are constantly updating the security rule set with signatures of newly discovered attack vectors.Imperva crowdsourcing technology automatically collects and aggregates attack data from across its network, for the benefit of all customers.The crowdsourcing approach enables extremely rapid response to zero-day threats, protecting the entire user community against any new threat, as soon as a single attack attempt is identified.Crowdsourcing also enables the use of IP reputation system that blocks repeated offenders, including botnet resources which tend to be re-used by multiple perpetrators.Keep an eye on that inbox for the latest news and industry updates.Flexible and predictable licensing to secure your data and applications on-premises and in the cloud.During 2019, 80% of organizations have experienced at least one successful cyber attack. Another way to prevent getting this page in the future is to use Privacy Pass. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Cross-site scripting (XSS) is a type of attack that can be carried out to compromise users of a website. The Cross-site Scripting (XSS) Vulnerability. This increases the reach of the attack, endangering all visitors no matter their level of vigilance.From the perpetrator’s standpoint, persistent XSS attacks are relatively harder to execute because of the difficulties in locating both a trafficked website and one with vulnerabilities that enables permanent script embedding.See how Imperva Web Application Firewall can help you with XSS Attacks.A web application firewall (WAF) is the most commonly used solution for protection from XSS and web application attacks.WAFs employ different methods to counter attack vectors. As a web developer, it is important to understand what is cross site scripting and how can we safeguard our site from such attacks. What Is Cross-site Scripting?

According to WhiteHat Security Top Ten more than 50% of the websites are vulnerable to cross site scripting.

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