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Javascript span innerhtml not updating

Those WYSIWYGs invariably use CSS and inline styles to accomplish this rich formatting, thereby making your assertion ridiculous and this library now completely impractical. I hope that the next version will allow basic markup tags and restore the href to anchors.

The problem is that some XSS filters assume that the tag they are looking for is broken up by whitespace.

For example " Based on the same idea as above, however,expanded on it, using Rnake fuzzer.

A very quick test on the 4.2 Sanitizer shows that it totally removes strong tags, h1 tags, section tags and as mentioned above strips href attributes from anchor tags. So in other words, Anti Xss is now like an antidepressant.

You’ll feel a lot better after taking it, but you may end up killing yourself. I would have kept my mouth shut about this even though I’ve had my doubts about depending on the library over something DIY, but since I work with a bunch of copycat monkeys, I have to use whatever everyone else deems worthy of being included in a project (common sense be damned).

But the null char is much more useful and helped me bypass certain real world filters with a variation on this example: This is useful if the pattern match doesn't take into account spaces in the word "javascript:" -which is correct since that won't render- and makes the false assumption that you can't have a space between the quote and the "javascript:" keyword.

The very first OWASP Prevention Cheat Sheet, the XSS (Cross Site Scripting) Prevention Cheat Sheet, was inspired by RSnake's XSS Cheat Sheet, so we can thank him for our inspiration.

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xxs link Originally found by Begeek (but cleaned up and shortened to work in all browsers), this XSS vector uses the relaxed rendering engine to create our XSS vector within an IMG tag that should be encapsulated within quotes.I know this may be a strange idea to comprehend for the good folks who developed the library, but you see in the civilized world, many people tend to use WYSIWYG in their projects so as to not burden their users with tags.These days more people are familiar with rudimentary HTML, but when you just want to quickly make a post, comment or otherwise share something, it’s nice to know there’s an editor that can accommodate rich formatting.Inserting javascript in an event method will also apply to any HTML tag type injection that uses elements like Form, Iframe, Input, Embed etc. This is often effective in XSS that attempts to look for "&#XX;", since most people don't know about padding - up to 7 numeric characters total.It will also allow any relevant event for the tag type to be substituted like onblur, onclick giving you an extensive amount of variations for many injections listed here. This is also useful against people who decode against strings like $tmp_string =~ s/.*\&#(\d );.*/$1/; which incorrectly assumes a semicolon is required to terminate a html encoded string (I've seen this in the wild): This is also a viable XSS attack against the above string $tmp_string =~ s/.*\&#(\d );.*/$1/; which assumes that there is a numeric character following the pound symbol - which is not true with hex HTML characters).This is especially true on a mobile device, where switching from text to special characters for tags is still annoying.