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In data sanitization, HTML sanitization is the process of examining an HTML document and producing a new HTML document that preserves only whatever tags and attributes are designated "safe" and desired.
Caja (pronounced / ˈ k ɑː h ɑː / KAH-hah) [1] was a Google project for sanitizing third party HTML, CSS and JavaScript. On January 31, 2021, Google archived the project due to known vulnerabilities and lack of maintenance to keep up with the latest web security research, recommending instead the Closure toolkit. [2]
A URL will often comprise a path, script name, and query string.The query string parameters dictate the content to show on the page, and frequently include information opaque or irrelevant to users—such as internal numeric identifiers for values in a database, illegibly encoded data, session IDs, implementation details, and so on.
As the JavaScript code was also processing user input and rendering it in the web page content, a new sub-class of reflected XSS attacks started to appear that was called DOM-based cross-site scripting. In a DOM-based XSS attack, the malicious data does not touch the web server.
Heuristic based methods are not as suited to sanitizing large datasets, however, recent developments in the heuristics based field have analyzed ways to tackle this problem. An example includes the MR-OVnTSA approach, a heuristics based sensitive pattern hiding approach for big data , introduced by Shivani Sharma and Durga Toshniwa. [ 25 ]
Padrino is a free and open-source web framework, written in Ruby and based on Sinatra. [2] [3] It is an alternative to other Ruby web frameworks such as Ruby on Rails, Merb, Nitro and Camping. It is dependent on the Rack web server interface. Padrino was created and open-sourced in 2010.
There can, however be drawbacks as well; if a user wants to modify a URL to retrieve new data, URL rewriting may hinder the construction of custom queries due to the lack of named variables. For example, it may be difficult to determine the date from the following format:
The DOM clobbering vulnerability arises from a naming collision between the JavaScript execution context and HTML elements in the Document Object Model (DOM). When an undefined JavaScript variable is declared in the same context as an HTML element with the same name or id parameter, the browser will assign the HTML element to the undefined ...