mathiasbynens / mathiasbynens/jsperf.com

Javascript injection in comments

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Dominant language
JavaScript
Stars
471
Forks
53
PR merge metrics
No merged PRs in 30d

Description

It looks like a comment on `https://jsperf.com/bind-vs-other-ways` forces a redirect to a movie download

```

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Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the issue at https://jsperf.com/bind-vs-other-ways using the supplied object payload in a comment, then trace how comments are stored and rendered in the jsPerf.com source. Confirm the redirect behavior and identify the existing comment sanitization or rendering path; done means the payload no longer executes or redirects when displayed.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
security, web-dev
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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