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Salesforce DEX-450 Exam - Topic 6 Question 34 Discussion

A developer has a Apex controller for a Visualforce page that takes an ID as a URL parameter. How should the developer prevent a cross site scripting vulnerability?
B) ApexPages.currentPage() .getParameters() .get('url_param') .escapeHtml4()
A) ApexPages.currentPage() .getParameters() .get('url_param')
C) String.ValueOf(ApexPages.currentPage() .getParameters() .get('url_param'))
D) String.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get('url_param'))

Salesforce DEX-450 Exam - Topic 6 Question 34 Discussion

Actual exam question for Salesforce's DEX-450 exam
Question #: 34
Topic #: 6
[All DEX-450 Questions]

A developer has a Apex controller for a Visualforce page that takes an ID as a URL parameter. How should the developer prevent a cross site scripting vulnerability?

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Suggested Answer: B

by Kirk at May 05, 2022, 11:33 PM

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Paris
10 months ago
Isn't escaping single quotes enough? Seems risky.
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Vanda
10 months ago
I disagree, option D doesn't cover all cases.
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Shawana
10 months ago
Surprised that people still overlook XSS vulnerabilities!
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Rodolfo
11 months ago
I think option A is fine too, but not safe enough.
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Demetra
11 months ago
Option B is definitely the way to go!
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Lashaun
11 months ago
I’m a bit confused about the difference between escapeHtml4() and escapeSingleQuotes. Would both help prevent XSS?
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Marg
11 months ago
I think we had a similar question in our practice exam, and I believe using escapeHtml4() was emphasized as a best practice.
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Royal
11 months ago
I'm not entirely sure, but I feel like just getting the parameter without any escaping could leave us open to attacks.
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Corinne
11 months ago
I remember we talked about escaping HTML to prevent XSS vulnerabilities, so I think option B might be the right choice.
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Marylyn
11 months ago
This seems like a tricky question. I'll need to think through the requirements carefully to determine the best strategy.
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Elroy
11 months ago
This seems like a straightforward question about how to handle on-site sales and installations in the Field Service mobile app. I think I have a good understanding of the options presented.
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Vernice
11 months ago
HIPAA, got it. That's the key law that sets the standards for protecting patient information in hospitals and other healthcare settings.
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Essie
11 months ago
This question seems straightforward. I'll carefully read through the criteria and select the ones that best match the definition of a CMS.
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Ashley
11 months ago
This is a good question to test our knowledge of Decision Center security. I'll draw on my experience configuring Decision Center to identify the most appropriate set of roles listed in the options.
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France
11 months ago
This seems straightforward enough. I'll just need to do the math step-by-step to find the sales figure that would result in a $200,000 profit, given the breakeven point and fixed costs.
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