Add lab xss.html #645
Merged
Add lab xss.html #645
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This adds a lab to practice countering cross-site scripting (XSS) vulnerabilities. I decided to use Python, Flask, and Jinja2, as they're common and easy to exaplain. Also, Jinja2 and Flask have a quirk - Jinja2 doesn't escape by default, but when brought in via Flask, Flask enables it. That gives us an easy excuse to discuss how to configure templating systems as necessary. I ended up making this a multi-part lab. That seemed like the best way to illustrate some important concepts when talking about how to escape values at scale. Signed-off-by: David A. Wheeler <[email protected]>
Signed-off-by: David A. Wheeler <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This adds a lab to practice countering
cross-site scripting (XSS) vulnerabilities.
I decided to use Python, Flask, and Jinja2,
as they're common and easy to exaplain.
Also, Jinja2 and Flask have a quirk - Jinja2 doesn't escape by default, but when brought in via Flask,
Flask enables it. That gives us an easy excuse to
discuss how to configure templating systems as necessary.
I ended up making this a multi-part lab.
That seemed like the best way to illustrate some important concepts when talking about how to escape values at scale.