Fix XSS vulnerability in EJS template haiku text rendering#4
Draft
Copilot wants to merge 2 commits into
Draft
Conversation
Co-authored-by: sfosss <147890625+sfosss@users.noreply.github.com>
Copilot
AI
changed the title
[WIP] Fix qs's arrayLimit bypass in comma parsing
Fix XSS vulnerability in EJS template haiku text rendering
Mar 2, 2026
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Haiku text was rendered using EJS unescaped output (
<%-), allowing raw HTML execution and exposing an XSS attack vector.Change
views/index.ejs: Replace unescaped output tag with escaped output tag for haiku text<%=HTML-encodes output, neutralizing any injected markup or script content.✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.