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article looks at five common Web application attacks, primarily for PHP applications, and then presents a case study of a vulnerable Website that was found through Google and easily exploited. Each of the attacks we'll cover are part of a wide field of study, and readers are advised to follow the references listed in each section for further reading. It is important for Web developers and administrators to have a thorough knowledge of these attacks. It should also be noted that that Web applications can be subjected to many more attacks than just those listed here.
Brett, do you think it possible that the search engines may take this into consideration when indexing pages? I see lots of discussion around here lately about how certain sites are just dropping out of the index completely. And then I read through the above article and see references to software that many are using here where these exploits are possible.
If you were a search quality engineer, and you could easily detect if a site had one or more of these vulnerabilities, wouldn't you want to exclude those sites from your index to protect your visitors?
i don't think, that's a good idea to judge a page on a specific identification string only (and that's how it is done to use google or others to locate insecure setups). it is even an insecure approach to think this will create more security, it will only obscure it more and there are many other methods to automatically detect insecure setups - but not for every google user.
more and more users should care about what software they are using and they should take care about security updates. often that's all. as quoted in the article:
"No language can prevent insecure code, although there are language features which could aid or hinder a security-conscious developer."
so this can happen with any software. but most webmasters use webapps (which are often publicly accessable) and they want their stuff in SEs, so this is a kind of risk-group, especially if they do not care about maintenance.